oxygen percentage in plants

How much percentage of oxygen a plant produce in one day ? my project is here https://www.instructables.com/id/recyclereuse-gardening/

Posted by mangal singh yadav 4 years ago


a good way to capture hydrogen and oxygen from electrolysis?

Well I've managed to actually seperate the hydrogen and oxygen from water, but I'm having alot of trouble capturing it. I want to capture the hydrogen and oxygen together, in one container. Anyone have any ideas? thanks, Joe  

Posted by thecoonskin 7 years ago


Looking for ideas to repurpose M-6/8 oxygen bottles/tanks

Looking for ideas to repurpose M-6/8 oxygen bottles/tanks. I sure these can be used for something cool. Thanks for any ideas

Posted by Tygrant 3 years ago


ignition lasers

Does any one happen to have an oxygen Iodine Laser by any Chance?? If so tell me how u made it...tnx a bunche...

Posted by pyreoutof 10 years ago


oxygen percentage in plants

How much percentage of oxygen a plant produce in one day ? my project is here https://www.instructables.com/id/recyclereuse-gardening/

Posted by mangal singh yadav 4 years ago


Artificial Gills

I don't kow about you, but I swim a lot and, as with most swimmers, would LOVE to be able to breath underwater without bulky air tanks or even a light rebreather. Fish take oxygen from the water so I don't see why can't I build something that does the same. Is there anybody who has any ideas or suggestions as to where I should look?

Posted by NumbersAndLetters 8 years ago


Electrolysis Materials

I have been looking at electrolysis a lot, and recently made one, but because I used copper wire it corroded straight away.  I have been looking at alternatives and titanium sticks out to me.  Currently cheap, $10 for 16 feet, and the conductivity is fairly good along with the corrosion resistance (high).  However, I haven't been able to find very much of anything stating that titanium works or doesn't.  Does anybody have any input, thanks!

Posted by Cody Heiser 3 years ago


Hydrogen Peroxide at home and in the Garden

Although the topic is quite old for some of us and mostly because I am too lazy today to make an Instructable: Hydrogen Peroxide ! Back in the day Hydrogen Peroxide was mainly known for the ability to bleech your hair, later it replaced chlorine based products for the preparation of paper and organic fibres. For me it is a good opportunity to go back in time and to pull out some of the remedies my grandparents already used. Who knows, there might be something that helps you or you might know other good uses that I failed to mention here, so feel free to comment. First off: What actually is hydrogen peroxide? We could check Wikipedia but I think it is enough to say that it basically water with an added oxgen mulecule which turn the stuff into a quite powerfull oxidizer. When hydrogen peroxide reacts the added oxygen is released and the normal water remains. Precausions and health risks. In the normal supermarket form hydrogen peroxide comes at a strenght of just 3%. This is just enough for wound treatment or cleaning off a fresh and small stain. The stuff you can buy at your hair dresser comes in concentrations of 5-15%, above that it is of little use to them. Pool grade peroxide however can come as high as 50%. It often requires a permit of at least leaving a copy of your drivers license to buy such high concentration but well worth it price wise. The downside of anything above 5% is a risk for your skin, eyes and airways. So when handling hydrogen peroxide you should waer long sleeve rubber gloves, safety or better swimming goggles and make sure that you don't create vapour by spraying it against the wind direction. Having water at hand to dilute and spillage on your skin is always good. What happens to me if things go wrong? Well, if handled correctly nothing should go wrong but of cause the worst would be eye contact. Getting concentrated hydrogen peroxide in your eyes means extreme pain and even with rinsing it out asap eye damage is more than just possible. Again: wear proper eye protection and if spraying use a filter mask, the paper type is enough!!! Nothing immediate happens on sking contact but a few minutes after contact the skin will turn slightly brown or goes white. This is caused by the oxygen release into your skin cells, if washed off quickly after noticing the discoloration will fade after a few hours. Prolonged exposure of the skin can cause skin cells to fully discolor and living cells might get damaged - a burning sensation is usually the sign that you need to wash the area now ;) Enough bad stuff said, let's see what we can do in the garden.... Fungal infection of your old roses or on your fruit trees? Sometimes the weather does not like our plants and by the time we discover a fungal infestation it is usually pruning time. There are commercial producta available that work quite well but especially the copper based ones tend to do more harm than good in th long run. An alternative is a solution of 10-20% hydrogen peroxide. Spray generously over all affected parts of the plant, leaves, twigs, stem and all. Make sure everything is properly wet! In some cases the fungus can act as a water replellent and it seems impossible to get any of the solution to wet these areas - a drop of dish washing liquid into the bottle will fix this! Watever runs off can be left as it only helps to get oxygen into the soil but of course you should not soak the area... Leave it on for about an hour, around 20 minutes if it quite warm. Rinse all off with clear water and repeat every 2 days for 5 treatments all up. After this time wait 2 or 3 weeks and check if the fungus still gows in some hard to reach areas. If so then repeat the treatment there until satisfied but wait another 2 weeks every 5 single treatments. In some areas of the world certain types of fungus on roses are refered to as "rust". ----- Moved into a new home and the garden beds smell really bad? The last house I moved into had a previous occupant with a big dog but no time to clean after his pet. The garden beds looked dead and I mean so dead that I could not even find weeds in them. And the smell was a distinct mix of old dog poo with lots of fresh cat poo mixed in it - the perfect outdoor pet toilet :( Trying to dig it all under made me recover that the top soil was more §$&*# than soil. I had to get rid of the bacteria of all the poo and somehow neutralize a lot of the unwanted "nutrients". The solution was to first loosen all the soil as deep as I could go. Then I added rice straw (but anything straw like or dry grass will do) to mix it through. At this stage I wished I had a gas mask LOL All up the contaminated garden beds covered about 20square meters. I got a 10 liter canister of pool grade hydrogen peroxide, from this I diluted down with 20 liters of water and a few drops of dishwashing liquid to help with the soil wetting. All was applied as evenly as I good with a watering can and then the area was covered with some tarp to try keeping as much oxygen on and in the soil as possible. A day later the tarp was removed and all beds watered with hose to drowning point. This watering was repeated every 3 days for 3 weeks to drive out all the excess and unwanted nutrients from the poo. The smell was already gone except for some cat urine residue which disappeared after some rounds of watering. Three months after the initial treatment I did some soil tests, added nutrients were required and the next season I had vegetables growing :) ----- Planting? Whether from seeds or seedlings, give hydrogen peroxide a try! I use a 5% solution to soak the potting mix I use before putting my seeds in it. Not only does it kill a few of the unwanted things that might still be in there but it adds a lot of oxygen into the soil, which gives the seeds a much better start. For seeds I use a 5% solution as well but only leave them in for about an hour before placing them between some wet paper towels until they start germinating. This way I can be sure all harmful bacteria and fungal spores are dead and I can use a sterile seed to keep going. Might just be my opinion but I think the germination rate is better and seedling in comparison start growing faster and stronger. Home uses.... As we learned before hydrogen peroxide, at least in higher concentrations is a powerful way to remove fungus. In our bathrooms we often have the problem that the ceiling starts to develop black spots as in the colder times water condenses here and takes a long time to dry off. If you now go to your favorite hardware store they will recommend the use of a chlorine based product, basically bleach... And although it does the job it also means your house will stink for days and if you scrub the ceiling you will get it on your sking and stink too. Hydrogen peroxide at 20% or higher concentrations can be sprayed onto the cleiling :) Of course you will need good protection for this and all things color should be removed, like towels or floor mats. By protection I mean a minimum of swimming goggles, a tyvek suit or similar to cover all exposed skin areas and at least a paper dust mask, better a filtered respirator like you use for spray painting or using insecticides. If you have a spray bottle with an adjustable nozzle then a stream is far better than a spray mist!! Not only is your exposure far lower but it much easier to wet the ceiling quickly. Wet all affected areas, then leave and the room, close the door and take off all clothes you used t protect you. The clothes can be left out to dry but double check that you had no soaked spot where your sking might have been in contact - if so rinse the skin with plenty of water! It will take some time to work and then dry, so best to do this in the summer time or if during the colder times you need to make sure the room is porperly heated and aired out to dry! Repeat until all black spots are gone, really bad areas will leave a permanent discoloration looking like a slight brwonish color is the ligh it right otherwise you won't see it. Once fully dry it is best to scrape off all lose paint and then to use a acrylic based sealer before giving the ceiling a fresh coat of white. The sealer will prevent the water to penetrate more than the paint level and if you get the fungus back on the paint it is far easier to clean ;) ----- Carpet cleaning.... When moving into a new rental with carpet on the floor you often are left with areas indicating the carpet might be "clean" but the underlay certainly is not. You can fix the underlay but you certainly can make sure all harmful stuff is gone from the carpet. Carpet cleaning machines can be hired but often much cheaper if you buy the "recommended" cleaning product with it. Rent is usually based on a daily base and price depends on how much cleaner you need. If you only want to desinfect the carpet which otherwise looks mostly fine than go for the smallest pack available and use it to spot clean areas you want cleaner first. For the desinfecting part I recommend to test how high you can go with the concentration of the hydrogen peroxide before using it on a big scale - keep in mind the carpet will never be fully dry and the remaining peroxide will continue to act! Test a 10% solution first before you go higher as you don't want to buy 30 liters or more of pool grade peroxide - just trust me on that one and only try to buy this much you do want to get into trouble a few days later! If 10 percent solution left on the carpet does not cause any bleaching of the fabric (unwanted bleaching that is) you can try higher for spot cleaning in demanding areas. A good spot to try the solution is under the cover or duct outlets, under these joining bars where carpet changes to tiles (if you can lift them off) or in wardrobes if the carpet goes inside. There are two way to treat your carpet once the general cleaning is done. a) use a garden sprayer or similar to wet the carpet This is good for single room treatment like for the baby room but especially on thicker carpets it requires a lot of solution and can become costly. Once wet leave for at least 30 minutes so the peroxide can do its thing, then use the machine with either the solution filled or just to dry off the carpet. I recommend to use the peroxide solution in the machine as it allows for better penetration and it will remove more soiled solution this way. If your catching container starts bubbling like mad it means you have a lot of §$%&#+ in the carpet and it might be best to first clean it all with the normal carpet cleaning agent before using the peroxide again - again tesing on smaller areas can help wasting the peroxide. If you need to store prepared solutions than it is best in a cold place. It will take several hours on an otherwise clean carpet for the peroxide to fully disappear so it best to use shoes and prevent skin contact during that time - especially if a baby crawls around ;) ----- Toilet.... We don't want to talk about it but everyone needs to clean their toilet sooner or later. For most things in there using the toilet brush when it happens will keep things clean and healthy. But what if someone in the house is sick or with a weak immune system? You could use all sorts of commercial cleaners and desinfectants but a wipe with wet towel or cloth soaked in a 10% solution of hydrogen peroxide will quickly eliminate all harmfull things on your seat, lid or bowl, including the buttons to press and the door handles ;) Just wipe and leave it wet for a minute or two then wipe again and ry - done! Personal use I always pack a small bottle of supermarket grade peroxide when going off road or camping trips. Although we now have modern desinfectants that won't stink or otherwise harm you I still prefer the old stuff ;) If you are far from civilisation than the last thing you want to need is medical attention for something that started as small as a scratch or graze.... Out in the unkown wilderness you will never know if the rockk you just crash landed on was used as a urinal by a fox the night before... A bit of gravel left in your skin might contain harmful bacteria... A cut with your own knife?? - What did you all cut since the last proper cleaning of the blade? You see where I am going here, a small thing might turn into something really nasty a day or two later. If you clean a freash and minor wound properly and then rinsie it with hydrogen perodixe most if not all harmful leftovers will be killed by the releasing oxygen. Of course this pretty much useless on bleeding wounds or where it is obvious that you won't be able to remove all debris from the wound - here it means you trip is still over in favour for proper medical treatment. The thing is that hydrogen peroxide was basically abandoned for all wound treatment once the modern "cleaning aids" became available as the peroxide will not only attack harmful things but also living tissue. The claims goes as far as causing bad scar tissue, damage to blood vessels and even "burning" of the tissue. One big problem I have with all these claims is that they were never really mentioned until the new meds came out. IMHO exposure time and how you use it it the key - common sense if you ask me. Noone should ever soak a wound in peroxide, if it is that big that you need to soak it you need medical attention anyway. And as said you should rinse the wound, that means all remaining liquid should be allowed to flow off - this will only leave a minor amount of peroxide in the wound and the exposure time will end with once all oxygen is released. For minor wounds I only use a paper tissue or cotton bud soaked in peroxide and wipe the wound.... ----- Smelly feet? Ok, maybe not the best way to start a conversation but we all know what sneakers do to our feet in the summer... Insoles with copper and activated carbon will help a lot and at least "cure" your sneakers while they are off your feet and have time to dry. But the smell is actually cause by bacteria growing from everywherey in your sneaker to your sking, actuall starting at your sking... If you wear your sneakers for long periods of time time or even whenever possible and also suffer from a bad smell hydrogen peroxide might be able to help you. Most sneakers will tolerate a machine wash and should come out germ free, if that is no option pack them in a sealed back and leaven them in the freezer over night - this will kill all bacteria and remove the smell. Now to break the endless cycle you need to remove the bacteria from inside your skin. So daily sock changes, freezing shoes and washing feet is a must! Your feet will really benefit from a foot bath in a 5% solution of hydrogen peroxide. To keep costs at a minimum use a container that is just the right size for your feet and prepare the solution from pool grade peroxide. I an ideal case you should not need more than 2 liters but all used product can be stored cool and re-used the next day, after that you need to make a new batch. Keep your feet submerged for at least 10 minutes. This will allow a deep penetration of the skin but might result in some white spots that will disappear after a few hours. Consenquent foot baths can be reduced to 5 minutes. After about a week you should notice that wearing your sneakes no longer causes and bad smell and you can stop the treatment. Freezing the sneakers over night, dialy (or more) sock changes and daily, proper cleaning of your feet should prevent any further bad smells :) ----- Bleaching your hair Althoug it was done for many years I really can't recommend using hydron peroxide for this purpose! Any concentration strong enough to have a proper effect in a reasonable time will at least cuase skin irritation. Back in the days they said your burning scalp is what you need to endure to get blonde hair :( And as said already you really don't want to get that stuff into your eyes... General uses If you have a fruit based stain then cahnces are hydrogen peroxide will remove it, especially if fresh. Even at supermarket concentration repeated application and proper drying off with a paper towel or similar will remove even red wine or beetroot stains. ------ Blood... On you skin blood is easy removed with cold water, same on other surfaces but washing off is no option a wet cloth or cotton piece will work fine. Hydrogen peroxide is good if things need to go fst or if the surface is porous, here the releasing oxigen will drive out the blood with the bubbles. ----- Fish tanks... If you love your tank then you really hate to medicate or even worse have a bad algea infestion, especially the stuff of the black kind. A change to activated carbon filter material is always recommended after a medical treatment to remove all leftovers from the system. However, certain medication simply won't be affected by a carbon filter and stay in the system until fully used or broken down otherwise. Especially in bigger tanks a partial water change is often out of the question as it would cause too much additional stress to the fish and plants. Hydrogen peroxide can help to break down most if not all remains of the used medication while at the same time adding more oxygen to the water. To be sensitive and safe in all enviroments I recomment to calculate the concentration based on the volume of your tank and to add the required amount of peroxide very slowly into the outgoing water stream from your pump. By slowly I mean in terms of a slow drip if using solutions over 10% to be added to the tank. If in doubt remove a suitable amount of tank water into a bucket and add the concentrated peroxide to reach the final tank limit. I strongly recommend to stay below 2% in favour over additional treatments a few days later if required. That means the diluted solution you add should be entered into the tank slowly if in doubt add a glass full every few minutes. For the treatment of the dreaded black algea you do the same 2% solution but be prepared that it will take several treatment until you see them die off. If you can then it is best relocate the fish for a few days so you can use a stronger solution of 5-8% just with the plants left in the tank. When transporting fish in a bag it can pay off to add a little bit of 3% peroxide to the bag to give additional oxygen for transport. I do this maually for every fish I buy from a store so I can be sure all fungus and bacteris is killed of before I introduce it to my tank. Really helps to prevent loosing a lot of fish just because you added one or two more to your tank ;) For the normal sized transport bags I use a good shot glass full of 3% peroxide in case you wondered. ----- Fridge and freezer Be it after long use or because you bought one second hand - once empty and warm some of our colling gadget just smell bad. A good clean with a hot water and your favourite cleaning agent is a good start, no need for aggressive stuff ;) If clean but still smelly, like after a power failure with fish in it you might want to go one step further. Best option is to use a spray bottle and a peroxide solution of at least 15% here. Use proper protection as mentioned above and spray all surface with the solution until soaked. What you can take out you take you take out, clean properly and then wipe or brush with the same peroxide solution. Bare aluminium should be handled with caution as in some cases it can oxidise badly, leaving a white and not removable crust behind. Here it is best to wipe and then wipe again with a cloth soaked in clear water to limit exposure time. No need to dry out - wipe out and check if it still smells, if so repeat and wiped off all areas as good as you can with a solution soaked cloth. Once the smell is gone dry out and enjoy smell free use from now on :) ----- Fruit and vegetables Unless you know exactly what happened to it you might want to clean your vegies and fruits properly before using them. Pesticides, herbicites, fungicites.... Not mention normal fungus and bacteria on the product.... On a commercial base hydron peroxide baths are often used to clean products for sensible people, hospital use or long term storage. For a personal use this only makes sense if you have free and unlimited access to the peroxide. An alternative are ozone bubblers. Expensive models can eb bought in shops or online, complete with timers or even a gauge showing the concentration in a room. On a hobby level for the kitchen sink we can use an ozone generator, air pump and bubble stone from the aquarium store ;) Let the pump bubble out the ozone for a minute or two, fill the sink with the fruit and veggies and move them around every few minutes. Best of course with an open window to limit you exposure to the ozone! Rule of thumb: If you can smell it is already too much in the air! The ozone in the water does the same as the peroxide: It breaks down harmful things with pure oxygen. The downside is that it is very harmful for your airways and body in general, so against all what youtube can offer I actually prefer to treat my fruit and veggie in a sealed bag. Place them inside, push out as much air as you can and then fill up with the ozone from the generator. Once the bag is full leave for about 30 minutes then wash and use or place the things in the fridge.

Posted by Downunder35m 10 months ago


Can a glass, vacuum insulated container withstand temperatures in the -180 degree celsius range?

Is it possible to store liquid nitrogen and oxygen in a vacuum insulated container for a short period of time? i have a thermos that i though might work, but i want to be sure that im not going to have the thermos explode in my face when i try it. this is an old beefy thermos that can take at least 190 degrees celsius, but im not sure about the other direction.  

Posted by pedrogabman 8 years ago


Would a glass, vacuum-insulated thermos be able to withstand the extreme cold of liquid-air?

I am in the middle of designing a system to produce liquid air using the von linde process. the termos would not be under any pressure, but it will get quite cold. can a thermos using a glass vacuum insulated inside be able to withstand temperatures below -180 degrees celsius?

Posted by pedrogabman 8 years ago


How do I collect the oxygen from the reaction of hydrogen peroxide and manganese dioxide?

I believe that the reaction between the black, powdery manganese dioxide found within carbon-zinc batteries, and household-variety hydrogen peroxide produces oxygen. However, it is my understanding that oxygen is heavier than air, and will therefore that collecting the gas will not be as simple a matter as seen in steven07's Instructable on producing and collecting hydrogen.Unless I'm completely wrong, and a reaction that produces oxygen will inflate the balloon. :POr, does anyone else have another way of collecting the gas?

Posted by carbon 11 years ago


Global warming & carbon emmissions

I may be off on a tangent to reality, but I wonder if there are any statistics available on the effect of all the Tonnage Oxygen plants around the world sucking in all the oxygen, separating the various gases & storing them in pressurised liquid form. I did a quick search today and 2 countries alone were 'manufacturing' (sucking in our air, separating the elements and producing) 26,000 tonnes of approximately 99% pure oxygen per day! To the crux of my question: Is this action (carried out on a worldwide scale and potentially growing) upsetting the balance of our atmosphere - we are all informed by the press and by the scientists that global warming is (or may be) attributed to mankind burning fossil fuels and dumping the excess carbons into the atmosphere. I just view this as the flip side of the argument........ has anyone ever considered the tonnage of oxygen drawn in from the atmosphere by these plants which is sold-on essentially as bottled gas or piped to be used for oxidising other materials (blast furnaces, basic oxygen steel-making, scrap cutting  etc), could be having an equal or bigger impact on our atmosphere and global warming than the straight burning of fossil fuels by power stations and automobiles etc? Just 'throwing the idea out there' (Liquid oxygen when spilt and viewed as a puddle, appears blue like the sky, the deeper the oxygen puddle, the more vivid the blue became ..... reminded me of when I was a kid the sky looked a lot bluer than it does these days).

Posted by Ttrick 5 years ago


Platinum and fuel cells.

A couple of questions: 1) Does anybody know where to get cheap platinum wire (or platinum coated wire) 2) Does AC work better than DC for electrolysis because neither of the poles will corrode. 3) fuel cells produce around 2 volts, right? 4) Is there a cheaper alternative than platinum for converting hydrogen (and does it need the oxygen?) into water and electricity?

Posted by guyfrom7up 10 years ago


Copper chloride without H2O2-adding?

Hi! I think i will see some PCB-Etchin in the future... So i will need an etchant. Aequous copper chloride was the choice i made since it is a regenerative etchant according to several sources. Now if i understood the chemistry right (Sorry... electrotechnician here), the reaction in theory only needs the oxygen from the peroxide (H2O2) and the hydrogen isnt used at all? Since i only have relatively weak peroxide, i plan on using a bubbler to introduce the oxygen to the copper-HCI-mix. This because i dont want to dilute the acid too much... Will that work? I know that if i use normal air (which has only around 20% oxygen in it) it will take some time... But would it work in the first place? I read somewhere that copper and muriatic acid dont really react in the first place... So if i also understood that right, it needs the oxygen present in the beginning to START reacting... So i think i may go with a contraption like: Plastic container with a bubbler installed (Pumps normal air) Add Muriatic acid to the container Add copper to the acid let it bubble till the copper is disolved Now i have a copper chloride-solution which i can regenerate by adding oxygen (By bubbler or H2O2)?  

Posted by Orngrimm 5 years ago


The Thought Bunker #1

Hello! I am doing a new Forum Topic train. This one involves some thinking. But it's not math! It's the fun thinking. The kind you can talk and laugh(and in this case, maybe yawn) about. So, what do you say? This week's Thought Bunker: If everyone in the world were to yawn at the same exact time, would Earth have enough oxygen to sustain all of us? Well, what do you think? Tell us! And now for this weeks best-thought:   Nov 4, 2009. 4:33 PMSeleziona says:  yes, everybody breathes normally, no oxygen shortages, and yawning takes a little more air, but not too much. So earth would have enough oxygen, and half of the world is asleep when we are awake, so it would be highly improbable  

Posted by chopstx 8 years ago


Hydrogen as a fuel?

It's easy to separate hydrogen and oxygen from water. If you mix them together it doesn't become water until it is burnt. In theory you could make a water rocket from gases. But in reality...

Posted by Princess_Mellow 10 years ago


How to make a long lasting battery pack for portable vaporizer that is small and long lasting?

What would the specs be to make a battery or buy a battery that would work for my portable vapir oxygen mini vaporizer? Can I just use any 12v battery pack or is it more complicated than that? The ac adapter says the output power is 12v----1.5A with a max output power of 18w. And I know the oxygen mini has an optional battery pack but it is expensive and doesn't last that long. The attached picture is of the ac adapter. Also how could I charge this pack?

Posted by chris1015h 9 years ago


automotive

Have a 2000 dodge dakota truck that will not pass smog the reason said is [ P1495 description not available]  {catalyst             not complete } { evaporative system      not complete} { oxygen sensor heater      not complete} i am wondering if anyone can help me fix these things with how to's.

Posted by tamara92345 5 years ago


Lost In Space

The brothers finished setting up, grabbed their head-sets, twiddled the knobs on their portable receivers, hit the record button and listened."Come in" "come in" "come in" "Listen! Come in!" "Talk to me!" "I am hot! I am hot!" "Come in!" "What? Forty-five?" "What? Fifty? Yes." "Yes, yes, breathing." "Oxygen, oxygen!" "I am hot. This is this dangerous?"The brothers looked nervously at one another. They only fully understood the Russian later when their sister translated for them, but the desperation in the woman’s voice was clear. Its an extremely interesting read about Russia's missing cosmonauts...LINK

Posted by bumpus 10 years ago


Checking Theories

In this topic, place your theories of some chemistry experiments in the comments section, starting with this one. To start with, Fe + 2H2O --> FeO2 + 2H...Place iron fillings to fill 1/3 of a water bottle. Fill the rest with water, and place a balloon on top. Wait X days/weeks/months. The water reacts with the iron to extract the oxygen from the water, leaving only hydrogen, and rust in the products. In the reactants, the hydrogen was bonded to the oxygen.Will someone tell me if this works? The energy that bonds this is the potential energy in the water.

Posted by PKTraceur 9 years ago


Has anyone ever done this? Will this make a massive explosion, or is there a gap?

Okay, so I have decided not to do this,but I'm just curious if anyone has done somthing simmilar to this? The design is very,very,VERY, simple,basically it is just two oxygen cylinders and two MAPP cylinders bound together with duct tape. There is an explosive device in the center (C4 or a steel pipe with blackpowder?). When the explosive device goes off, its force raptures each of the cylinders. The MAPP(fuel source, duh!) mixes with oxygen(oxidiser obviously) and heat (from the explosive device) to create one massive explosion. I'm not really going to do this, but just curious about what would happen if I did. Would it work, or is there a fault in this design? BTW- If you did or are going to try this out, please, post a video. Oh yea, and do it in the middle of nowhere where no one could get hurt,and make sure you are safe as well.

Posted by IlluminatedAntichrist 11 years ago


propane machine gun simulator help

I like to make a small propane machine gun simulator, the kind they use in movies. I need to know how to make the firing circuit board, what type of solenoid's I can use & what type of ignition coil & spark plug to ignite the gas. Put it simply, I need a DIY on How to build an oxygen propane machine gun simulator.

Posted by elkaddalek 2 years ago


Space Related Instructable - Atmosphere/Pressure Sensors

I am really into rocketry, aerospace engineering and space in general. I have met a few people at my college that are somewhat interested in the same but dont know alot about it. So i thought i could build a few different environment sensors like the astronauts use to simulate/demonstrate a few basics. For example i wanted to build a few different sensors. But i cant find any instructables to teach me how to make these....Can anyone help or can anyone direct me to a few instructables that could be used to tweak to work for this purpose? - To help show how the astronauts have to regulate their atmosphere in the ISS or even explain how we don't breathe just oxygen - we breathe a combination of O2 and Nitrogen since Earth's atmosphere is mostly nitrogen. O2 (oxygen) Sensor CO2 (Carbon Dioxide) Sensor N (nitrogen) sensor Display to show all sensor data - To help show how they manage pressure in the ISS and have it regulated by an airlock. Atmospheric Pressure Sensor and Display

Posted by acadena2 2 years ago


Midori no kaaten "Green Curtain"

I just read about an inspiring idea from Japan to lower electricity bills in summer: you mount a wire frame outside the window, plant vines at the bottom, and the vines will grow up the wires, providing shade, a more "organic" feeling, and probably a little more oxygen to the room its shading. This sounds like a GREAT idea! Does anyone know of any fast growing vines that are succulent/lush enough to make this work well?

Posted by dizzytired 10 years ago


Make your own liquid nitrogen for under $500

Ben Krasnow built a machine that makes liquid nitrogen for under $500. It's made with many parts he bought off of eBay and can generate a liter a day of the stuff at a cost of $1.15 per liter. Check out the link for more info. The first video is from this year's Maker Faire and the second shows the effect of liquid oxygen on a BBQ. DIY liquid nitrogen generator via adafruit

Posted by fungus amungus 8 years ago


food for teeth ?

Hello. I've heard that teeth were able to absorb some substances/molecules thanks to the porosity of the enamel. Unlike bones, as they are not self-regenerating from the outside, I was wondering what substances may be usefull to offset the erosion of the enamel (remineralization ?). Is there something that could be concidered as a "food" for teeth ? Also, about dental caries, as they are mainly caused by bacteria eating "fermentable carbohydrates" who generate acidity, here is a question that may sound stupid, but that is serious : - to make the work of those bacteria harder, is it better to sleep with the mouth wide opened (oxygened mouth) or with the mouth closed (anaerobic conditions) ?

Posted by chooseausername 10 years ago


Volume of gas from given weight of dry ice?

I'm rusty on basic chem. specifically, molarity, molecular weight... Dry ice, frozen CO2 is sold by the pound. I'd like to know by working formulas, how much volume a pound of dry ice will fill once it returns to gas. Carbon has molecular weight ~ 12.  Oxygen ~16.  But I don't recall what those numbers represent. One mole of gas occupies 22.4 liters, but how much does a mole of CO2 weigh?

Posted by Toga_Dan 3 years ago


Elementeo Chemistry Card Game

14-year-old Anshul Samar has created his own science-based fantasy card combat game Elementeo. Check out the interview with him below.Elementeo is a strategic battle game where you use your elements across the battlefield in reducing opponent's electrons to zero. You do that by harnessing the strength and moving properties of the elements and compounds, and by using their reactionary powers. For example, Oxygen can rust any neighboring metal or Copper Conductor can shock any metals and send them back to the deck. via Wired's Geekdad

Posted by ewilhelm 10 years ago


Using Tungsten to Ignite Gas?

Alright, so Tungsten (which you may or may not know, is my favorite element) is combustible when current passes through it while it is exposed to oxygen. Could I place a bit of tungsten I scavenged from a lightbulb in a small pool of gas (or alcohol) while running 9 volts through, and get a reaction? Would having the whole bit of tungsten under the gas work, or would I need a piece above the gas also? I'm not looking to blow things up, just trying to do a bit more "dangerous experiments" before school starts. Thanks all!

Posted by Bran 11 years ago


**Please Define This Word. Everyone who replies wins a prize...**

PLEASE! At school today, this word came up. I know I have heard it before, but can't remember where, or what it means.Of course, i don't know the spelling...It sounds like DEL-FWAY-GOMaybee spelled like...Delfuaygo, Delfwaygo, Delfaygo, Delaflaygo.Anybody heard of this? Please let me know.By the way, the prize is.... a FREE GAS compossed of roughly 78% nitrogen 20.95% Oxygen 0.93% Argon and 0.04% Carbon Dioxide!It can be picked up where ever dust particles, dander, germs, and airborne carcinogens are sold!

Posted by evy-wevy 11 years ago


What are you worth?

I was wondering how much a human body is worth, so I worked it out.I based it on a 100kg human, to keep the numbers simple, assuming commercial use of the materials, and worked in GBP:Oxygen (65kg) 32,274.16Carbon (18kg) 270.00Hydrogen (10kg) 10.00Nitrogen (3kg) 4.00Calcium (1.5kg) 2173.91Phosphorus (1kg) 0.25There are other elements in smaller amounts ("enough sulphur to make a box of matches, but nothing to strike them on"), so we'll add a few pounds for those, and the whole thing comes out at: 34,750 of your English pounds!So, who is going to start the first people-recycling centre? Soylent Green has nothing on this!

Posted by Kiteman 9 years ago


Small Scale Scuba Gear within $100?

I had an idea for a good instructable. I'm trying to plan out on paper a neat breathing apparatus for a hundred dollars. Constraints are that it has to fit on the face, can be carried anywhere, and should at least provide one minute of oxygen. As a plus, why not add a pump so you can replenish the air supply when its running low. The way i might build this, ultimately, shouldn't be too hard. But what is being difficult is what to use to hold the air supply. would an air tank from an airsoft gun be any good? or would i have to use something different to contain the pressure? Any input would be greatly appreciated! -Jakit

Posted by EngineerJakit 7 years ago


Hubble Snaps Images of a Nebula Within a Cluster

The Hubble telescope has snapped new images of a Nebula within a cluster."This Hubble image was taken in November 2008 with the Wide Field Planetary Camera 2. The colors in the image represent a range of emissions coming from the clouds of the nebula: red represents nitrogen, green represents hydrogen, and blue represents oxygen."Quick facts :Distance: 10,400 light-yearsExposure Time: 2.1 hoursRelease Date: January 15, 2009Dimensions: This image is roughly 2 arcminutes (6.5 light-years or 2 parsecs) wide.MUCH bigger images and more info can be found here :http://hubblesite.org/newscenter/archive/releases/2009/05/image/

Posted by =SMART= 9 years ago


HCl obtention from bleach and acetic acid (vinegar).

I have always been curious to know if it is possible to obtain hydrochloric acid (HCl) from chlorine-based bleach and acetic acid (vinegar). I found a lot of answers saying that it was impossible and dangerous because you wouldn't obtain HCl; instead, you would get chlorine gas, which is a very dangerous fume that can cost your life. However, I found an answer saying that it was possible to synthesize it, but not directly from bleach. First, you have to mix equal quantities of bleach and acetic acid to obtain hypochlorous acid (HClO) and then you have to add a transition metal oxide (iron oxide, copper oxide, etc.) to get HCl and oxygen gas.  Filled with curiosity and keeping in mind that safety is the priority, I decided to try it out by mixing equal portions of bleach (NaOCl) and acetic acid (C2H4O2), obtaining an aqueous solution of hypochlorous acid (HClO) and sodium acetate (C2H3NaO2).  NaClO + C2H4O2—> HClO + C2H3NaO2 Then, I added copper oxide (rusty pennies) since I know that copper by itself reacts very slowly with HCl, so I could leave it there until the copper oxide had completely reacted with the HClO (leaving clean pennies).  Little but numerous bubbles started to come out which I thought to be the oxygen gas leaving the hypochlorous acid. I waited there until there were no more bubbles coming out which meant that the reaction had finished. To prove that it was HCl, I decided to add Aluminium foil and see if it reacted accordingly. However, nothing happened, so I tried the whole process of mixing bleach and vinegar again but when I got to the part of adding the metal oxide, I did not add copper oxide. Instead, I left it outside in the sun to react since I know that ultraviolet radiation causes fast disproportionation, forming HCl and oxygen gas.   HClO —> HCl + O2 After all the bubbles had finished coming out, I added Aluminium foil to prove that it was HCl. However, noting happened, and again, I obtained the same product as the last time.  I immediately stated to think of possible products that I could have obtained and the reasons why my reaction hadn't worked properly. It was then when I remembered that in the very first reaction (the one of the vinegar and the bleach) I had obtained a side product that I had completely forgotten about; sodium acetate (C2H3NaO2). And I suspect that this side product could have affected the whole process.  And that is my question; was it really the sodium acetate that one that affected the experiment or could have it been something else?

Posted by Joseluismi 10 months ago


The New Pollution

A green revolution is supposed to lead us to a utopia where the birds chirp and the human stain is smaller on the planet, but sometimes the new looks a little too much like the old.Take this story about biofuel plants dumping glycerin into rivers. Sure, it can be broken down by organisms, but it still causes big problems when dumped into ecosystems, just like the black stuff."They're really considered nontoxic, as you would expect," said Bruce P. Hollebone, a researcher with Environment Canada in Ottawa and one of the world's leading experts on the environmental impact of vegetable oil and glycerin spills."You can eat the stuff, after all," Mr. Hollebone said. "But as with most organic materials, oil and glycerin deplete the oxygen content of water very quickly, and that will suffocate fish and other organisms. And for birds, a vegetable oil spill is just as deadly as a crude oil spill." Link to nytimes articlevia treehugger

Posted by fungus amungus 10 years ago


super airsoft gun back pack mounted awesomness

Hello I need some help concerning the creation of my super BBMG (bb machine gun) you see I have a green medical regulation aluminum oxygen cylinder (see picture, it is about 3 feet tall and about 3-3.5 inches in diameter) and I am wondering if I pressurize it to 100 psi how long would I be able to maintain a steady rate of fire? Also, my bbmg is made of 3/4 inch pvc pipe and is about 4-5 inches long not including barrel the air inlet is a blow gun valve with a opening the size of a airsoft BB the actual bb outlet is of the same size as the air inlet only the barrel is 3 feet long (I don't think the barrel length will affect the over all time of sustained fire but I don't know for sure) if anyone can help me with this I would be extremely appreciative thanks, fidgety2

Posted by fidgety2 9 years ago


Audio playing on page load due to ads????

So I just opened a few instructables from the latest email newsletter, which is always fun.  I have about 8 tabs open.  And then... some random audio ad starts playing at full volume. Something about oxygen network.  Of course I have no idea which instructable page is playing the ad, so I can 1) wait it out while the audio ad plays, or 2) close tabs one by one to see which is the offending page. Why in the world would instructables.com allow audio ads on their website?  I understand if they require user interaction (explicitly clicking to start audio).  But instant audio as soon as the page loads is an awful web faux pas.  If this were more common place, I'd either block all instructable ads (which would be detrimental to the site, I'm guessing), or just stop visiting (which would be detrimental to me :(  ) I really hope this is just a mistake and gets fixed.

Posted by jumpfroggy 8 years ago


Grow Our Own!- the big idea

Hey there Makers and Instructors! It's me, Maxwell and I have an idea to help feed people collaboratively, and I would like some advice on how to establish a collaborative barter network of people who want to or do grow food(mostly vegetables,herbs, and fruit,or even canned varieties for those who preserve) I call it Grow Our Own, or Let's Live! Participants would barter fruits, vegetables, herbs, seeds, plants, etc, and a climate of information,instruction,and encouragement. This might take place at either gatherings on weekends in specific places, personal meetings, or through a distribution system I haven't figured out yet.(advice?) There would be a system to enhance diversity, as well,so you wouldn't just end up with an enormous beefsteak tomato glut,( kind of a grow what you want, but please if there's space a little of this?) Ideally, this would increase nutrition, oxygen, biodiversity, provide useful growing information to a hungry somewhat ignorant populace , promote responsible water and waste use ,and bypass at least some economic cycle problems. I want to establish a network of smaller more local groups to also encourage people to propagate fruit, herbs, and vegetables,(especially heirloom varieties) and to instruct and engender a system of distribution and instruction. I definitely think composting is a strong part of this. I also think that trying to find unused spaces and getting permission to grow on them might help grow abundance, as long as vandalism can be avoided.Admittedly over my head. I would also like to encourage this for partial-subsistence growing in urban areas. I feel each apartment building roof, balcony and courtyard that can hold even transient plant life should be split between solar power, raingathering, and semisubsistance food growing. If this is done collaboratively, it will begin to snowball and will become more common.This would effectively improve life for some poorer people with less nutritional access due to economic factors. (If the fast food industry served actually nutritious food at it's locations at the prices it has gummed up America's vascular systems and organs, it would be one of the most effective nutritive food distribution systems in the world, instead of the casually despotic mutilator of bodies it is.(bovine AND primate) That may have sounded harsh, and I apologize if your love of a Double Supersize Mc Twinky Burger supersedes your desire to survive, that's your choice and I respect it, I was making an example, not inviting the hate. Houses with arable land now foolishly wasting water on lawns should be growing food. This not only could increase air quality and continue to localize moisture, but could reduce economic burden on many families, and therefore incrementally reduce municipal strain. This also can help mitigate graywater and reduce system load and waste. We have gotten too used to the system of aloof receivership in our modern societies. We must relearn to grow our own food, make our own things, understand the processes that keep us alive on Earth. I know you understand. Linear systems are unrealistic in a universe of cycles, let alone a world of cycles. We can live better by working together, because that's how the planet works. Sympathetic and Symbiotic processes naturally facilitate unity and if we work with what of the Earth we haven't paved over, or create more space to grow food in, we may counteract some of the damage we have done and stop so much waste. We may even teach people to eat more nutritiously, I'll bet. We must reteach ourselves to seek knowledge and wisdom rather than solace and escape, teach our children the ways of responsible stewardship of sustenance and comfort. I am going to put together what I can of the idea into a simple website soon. I want to reach people with that message, though I don't know if I am much of a frontman.So let's do it together. If we work together we can help each other survive better. Isn't that what's really important? Thank you for any advice, oh yes, and please don't assume I am Omniscient Superfarmer, I'm trying to learn too, any useful information will be appreciated! Let's Live! Cheers and Hope, have a great day! Maxwell (btw,I've already sent this, somewhat paraphrased in email form to: The Buckminster Fuller Institute.org, Pathtofreedom.org, The We Campaign, The Theodor Payne Foundation and many others, but any suggestions? You also may send it to whoever you think may help.) I admit I'm excited!

Posted by Subconscionaut 10 years ago


Paper two stroke hydrogen engine

 Ok so I have this crazy idea to make a two stroke engine out of paper that runs on hydrogen and well ive allready built part of it just the piston head and cylider and stuff but if i lined the inside of the cylinder with tin foil would that be enoth to keep the paper from burning? and so ya anyways the engine of i have made allready is very sturdy each peace is 10 sheets of paper or more compressed for over 24 hours  now the compression im not two worried about because its more of the sheer pop of the explosion that will push the piston down well i guess thats how it is anyways but if the gas ignites anyways with oxygen why have compression  for this anyways because the explosion is going to be soooo small anyways that it wont really matter much.  the overall size of the engine is about almost 2" tall by about 1" wide on the widest part the bottom . So um I know by now im classified as "CRAZy" but that asside can i get some opinions and ideas plz. thanks MRN

Posted by mrn 8 years ago


Javier Fernandez-Han Wins 2009 Invent Your World Challenge

Invent Your World WinnersView more Microsoft Word documents from Youth Venture.http://socialentrepreneurship.change.org/blog/view/youth_taking_action_a_15_year_old_invents_the_futureI acted as a judge for this competition, and the winning Versatile system was of my favorites from among many interesting and thoughtful entries. Congratulations to Javier!At the tender age of 9, Javier Fernandez-Han found his calling: design for the other 90 percent - help the world's poor meet their basic needs sustainably.Several years of research and design have led to an innovative solution: The VERSATILE System - a mashup of new and adapted technology that treats waste, produces methane and bio-oil as fuel, produces food for humans and livestock, sequesters greenhouse gases, and produces oxygen.What drives this complete energy resource system? Algae - the little organism that could.For his work, Javier, 15, won the top prize in this year's Invent Your World Challenge, sponsored by Ashoka's Youth Venture and the Lemelson Foundation.We spoke to Javier about the VERSATILE System and the need for holistic thinking in the invention sector.

Posted by ewilhelm 9 years ago


Electrically Conductive Plastic: a general discussion.

I find i have an odd set of interests. Specially with regards to this forum.  I'm interested in electrically conducting plastics. I've been hitting the Wikipedia pretty hard looking for information on the topic.  I've found a couple of interesting articles:  http://en.wikipedia.org/wiki/Polythiophene http://en.wikipedia.org/wiki/Polyaniline My main reason for pursuing this as of late is because I think electrically conductive plastics offer a way to create high efficiency photovoltaic cells on the cheap (least relative to growing pure Silicon crystal without oxygen contamination).  Azodyes, which are popular doping agents for current thin film photovoltaic cells  can be linked directly to the organic back bones of the polymers, and i think this will make the conversion of photons into electrons more efficient. There's other organic compounds (specifically i'm thinking of metallocenes which can be used to generate positive valences, also known as "holes" within the molecular structure of the plastics) which can be used to dope an organic solar cell, but azodyes are the most obvious. Anyway... gonna hit up google. if any y'all have ideas post em up.

Posted by Qcks 6 years ago


Controlling anaerobic digesters with arduino

Hi I am new on the Arduino scene and I am trying to build eight anaerobic digester tanks to conduct experiments for my thesis in engineering. The setup will look as follows: -Arduino mega -Arduino motor shield R3 -Two motor stirring the digester at different RPMs. Motors will run at 12 V and around 0.5-1 A. -The motor shield will use the wall jack as power supply via an AC-DC adapter. -Biogas volume measuring device (tipping sensor) -Aquaria air pump to supply Hydrogen Sulphite consuming bacteria with oxygen. This will be controlled with a relay and the volume measuring device. -The pump will use the wall jack as power supply -Temperature sensors DS18B20. -Immersion heater controlled by the temperature sensor and a relay. The digester is supposed to be kept at 37°. Everything will be logged but I haven’t decided if I will connect a Ethernet shield or if I should log on a SD card. I think that I can manage to build it but I have some questions (a lot) but will just post some and post more later. The experiments will run for 4-6 months how will the Arduino, shield and relays handle being on for that long? Do I need something with higher quality? (It would suck to burn down the university) Any spontaneous thoughts that I should know or that could help me?

Posted by joche11 3 years ago


Integrating Highschool Sciences

Irene Duke, Kate Hoff, Lyndsay Carlisle and myself are participating in the MIT course 11.124, _Introduction to Teaching and Learning Science and Mathematics_. We have a variety of teaching interests: Irene hopes to teach chemistry, Kate to teach Physics, myself Physics or Mathematics and Lyndsay hopes to teach social justice / political history. Provided Make magazines as inspiration, we were tasked to design a joint activity, merging four high school classes of these topics for a period of weeks or months. We developed the ideas described in this first entry over the course of a class period. Hopefully, we'll take the time to expand each step into an instructable, possibly including trials by fire teaching 8th-11th graders. The material is structured by conservation of energy and resources, inspired by the articles of Tim Andersen. The final demonstration we envision motivates the particular material we wanted from each field. A bicycle wheel is drives an alternator transforming mechanical energy into electrical. The electrical energy is used to run a electrolysis process, rendering separate measurable quantities of Hydrogen and Oxygen. The Hydrogen and Oxygen are then combusted for the students. The amount of mechanical energy can be measured, as can the electrical. The binding energy of H_2O can be used to determine the chemical potential energy rendered. Finally, the combustion both demonstrates the energy's new form, and the difficulties in storing energy. The difference between power and energy underlies all of these experiments. Conservation of linear momentumn should be a familiar topic with the students. Conservation of angular momentumn can easily be introduced at this point, demonstrated with the bicycle and a fly wheel. Chaning the orientation of the wheel can be exteremely difficult. For the chemical portion of the experiment, stoicheometry should be familiar to establish the link between the amount of gas generated and the energy invested. The most appropriate mathemetical tools are statistical. Sampling, linear regression and averaging would prove useful throughout the experiments. Global economic relationships leading up from the colonial period would perhaps be the most applicable topic form history or the social sciences. Though not a technical detail, an important aspect of executing such an idea involves the actual deployment of resources. Students could, for example be broken up by their topic of interest, whether it be the physical, chemical or social aspects of the project. Next, new groups would be formed with one or two members from each subject area. These groups could then attempt to execute the design from the first slide, or one which is similar. Throughout, the students will present their thoughts or understanding to the teacher. This design project should perhaps be phrased as simply turning mechanical energy into hydrogen. Students with social scientific background might be responsible for estimating the costs of the implementation in different settings, and that would be used to drive a larger scale version. So, before getting started on building and documenting this project, do people have suggestions? What worked to combine the physical sciences for you? What might have worked?

Posted by mmt 11 years ago


OxyHydrogen Internal Combustion Engine Boosting Anyone?

So folks I think I'm gonna give the water-into-OxyHydrogen-into-fuel booster gag a try. There's a couple of shady ibles on the subject, so I wanted a little more professional input. I'd like to go about this all scientific like so my questions kinda boil down to:Measure / calculate the amount of air used by my car in one second (in volume)What's the best catalyst to useMeasure the amount of hydrogen and oxygen produced in one second (in volume)Accurately measure fuel efficiencyI met a chap who did it to his car, I'll try to wrangle some out of him. Bit of an interesting blighter, 50-60ish black chap with dreadlocks from Gloucester.I'll be giving it a try in a less then optimal test vehicle however. Carburated '94 Buick Century, V6. I'm sure the idea would "theoretically" work better in a smaller engine. If this system works at all (upwards of 10% increase in efficiency), I'll make an improved version and iblify it. The car will be used on primarily the same route, a good mix of highway and 40 ish speeds, and I'll leave the air conditioner off full time so's not to get false readings.Any input plz? I'll post some pics of my brave victim car later.

Posted by KentsOkay 8 years ago


Wood gasifiers and safety - Carbon Monoxide poisoning - hospital

Sorry if it is in the wrong section of the forum. If it can be moved to a better place then do so. This is a quick mention to anyone that is playing around with any burners such as:    wood gas generator    bio-gas    wood gasifier    'hobo' stove I am not severely concerned but it did happen, I think it needs a mention, as it is for everyone's safety. After playing with wood gas and attempting methanol creation from a small gasifier unit for a few weeks, I had started to realize that each day I had a most annoying headache / migrane in my frontal area of my brain / head. They ended up getting so bad that my body could not tolerate them anymore and started to go into shock, causing a rather painful, endless throwing up session for many hours each time even.  It came to a point where after 3 weeks of playing with a bio-gas generator for about 4 hours a day had started to lead me into temporary blindness an hour and a half at a time. This was when I was concerned as I could not read any more instructables :( After a quick jot to the local doctors, I explained what I had been up to and I was correct. I had given myself the rather classic, and very close to death, carbon-monoxide poisoning where my doctor insisted I go to emergency at the hospital ( 2 hours away ) immediately and have someone else drive me. Pretty much equivalent to staying inside a garage with your car running for 5 hours, all the doors closed. I was very close to severe carbon monoxide poisoning and death.  At the hospital, blood was taken, analysed, and they had discovered large traces of C02 that they attempted to flush with some oxygen, but this only works to a point and they mentioned that nothing else could be done apart from telling me not to use or be near any smoke sources for at least 3 weeks and I should recover fine. I am still playing with my wood gas generators, and attempting to make methanol, but these days, after 3 days ago, I take further safety precautions to make sure it wont happen again. Such as: ventilation / exhaust fan ( I WAS OUTSIDE WHEN I WAS POISONED! DONT TAKE THIS LIGHTLY! ) keep a distance, find a better way to ignite / extinguish the burner keep your face and body out of the smoke dont watch the flames / smoke from above for any longer than 2 seconds do not taunt the Criosote by-product of wood. I am not sure which is more toxic. The smoke or this.   ( criosote / bio-crude, whatever you want to call it, it is the condensate of the burner unit containing more chemicals, very stinky) do not store criosote indoors withough a sealable container ( the smell likes to soak into things, like my kitchen ) if you know what you are doing, keep oxygen tank nearby use all protective clothing and masks, etc. There was a small arrogance in my head when playing with these units. And that is simply that I was thinking 'it is just smoke'. Wood gas generators are generating a much more toxic smoke than just sitting around your camping fire and should not be considered to be something to play with, without proper valves, pipes, burn off points etc. It contains on some scale: carbon-monoxide, methane, acids ( acetic ), tar and many other defects that will cause you issues if you are not careful. Keep it safe guys, this was a rather difficult one for explination, but I do not want someone other than me to be in that same sickness / position as I was with the poisoning, as it is the most painful experience I had yet had.  Worse than me hitting a tree head on at 80km/h. Worse than falling 2 stories off a cliff onto rocks. Worse than being hit by a car and thrown over it's windscreen. Worse than the feeling of an unsuccessful home made rocket launch. All of these above I have had happen to me, and the poisoning was by far the worst and I was scared more for my life than than any above accidents. It is not a very nice feeling, it is a deathly, sickly, useless feeling, blindness is not far away from death if found in this situation. Oxygen / fresh air is the only thing to help you if poisoned, even if in hospital. Keep it safe guys. If you want me to write up a full on poster on wood-gas / wood-heater safety I can or even just a propper write - up on general safety with this smoke and the wood gas units etc. Ask please and I will. Hospital staff will most likely give you 'items of interest' for instructables if you just ask them too. I have a heap of things from a stethoscope to vials to 'red dots' for homemade ECG machines. They tend to like crazies like me that make weird stuffs .. i hope ive gotten the point across anyway.   

Posted by AtomRat 5 years ago


The end is Here ?

This is an urgent call. I think the world would really come to an end because of the increase in natural disasters around the world. I think the world would certainly come to an end with a huge tsunami. Since the effects of global warming is here, within 5-10 years i am afraid to say that the world would certainly end. So do you think this is possible ? Thats why me and a couple of my friends are thinking of making a safehouse or ship where we could be safe in case of a tidal wave or other natural disasters. The problem is that we do not have any clue of what we are doing. i am thinking of making a anchored kinda ship which could acompany 5 people each. This ships would contain oxygen tanks with supply of about 2 years, food and safe drinking water wit seawater purifer, necesary tools and items, survival supplies and other necesary things. This ship should contain an onboard motor engine which could enable the ship to move in water. This ship should atleast protect the passengers from a big tsunami. It would contain a 5 passenger seating with folding beds and solar panels which could also power the engine and equipments inside. i really wanna build this because it's a fun project and could protect peoples lives who are poor and could not afford to go on a boat or are in low lying areas. So what do you think?

Posted by arylic 8 years ago


All right, let's clear this up: What the hell is inside of a battery?

Really frustrating: I accidentally closed the tab I had been working on for about 15 minutes, so I'll probably be missing a couple of questions I had been meaning to ask.So anyway: When I peel off the outermost metal covering of a zinc-carbon battery, I'm just taking away a protective steel covering, right? When I get rid of that, am I looking at the actual zinc "case?"What is the sticky, black material that surrounds the graphite rod? Is that manganese dioxide? Is manganese dioxide the same thing manganese oxide?Further outwards from the center of the battery, there is another black substance. Is this ammonium chloride?I haven't actually chopped open a carbon-zinc battery all the way yet. Is there a good technique for removing all of the contents?How can I tell the difference between the two black substances? Is the moist, black paste ammonium chloride? If this is so, then why, when I pull the graphite rod out of the battery, is it sometimes coated with a sticky, black substance? Do the substances mix with each other or are both substances sticky and black? Is one a powder?Is it okay to drill through one end of the battery? If I drill into the negative terminal of the battery, what will fall out?Basically, what are the physical properties of all the materials? How can I tell the difference between them?Now: On to alkaline batteries...Both types (carbon-zinc and alkaline) appear to use manganese dioxide. Is this so? On Wikipedia's article on alkaline batteries, manganese dioxide is described as Zn/MnO2, with the two as a sub-script. Does the slash mark mean that zinc and manganese dioxide are interchangeable?What will I find if I open up an alkaline battery? Is it safe to do so? What is a good, safe way to open one up?Are there any particular "fun" applications for these chemicals? Think explodiness ; )I've heard that manganese dioxide can be used to produce oxygen. How do I do this?There might be some yellow tag-box notes on these, pictures. For the context, visit my Instructable on how to make your own carbon arc light. I'm not trying to advertise, I'm just anticipating someone asking about them.

Posted by carbon 11 years ago


Producing Hydrogen to Function as a Lift Gas

The short version: I want to make hydrogen to fill model airship envelopes with, because screw helium. Help me make a cheap electrolysis device that can do this in under an hour (ideally), or come up with an even better system for production. My immediate problem is that I need a high-surface electrode that won't fail in a solution of sodium hydroxide.The long version:I've devoted a fair portion of my time to contemplating airships, primarily because they're awesome. Fell out of use with the rise of much faster aircraft, and the technology its fate sealed by the extraordinarily bad rep the Hindenburg gave it. It is still far from useless, however, in that lighter-than-air systems can lay claim to flight times measured in days, and sometimes months, thanks to the fact that they literally float in the air like a boat floats in water.Their day may have come and gone, but I still want to experiment with the technology and create some model airships of my own. Helium works okay as a lifting gas, but it remains expensive and isn't going to get any cheaper in the foreseeable future. It is for this reason that I am pursuing hydrogen, in the hope that I might be able to produce a cheap lifting gas for my projects. Unfortunately for my aspirations, hydrogen is surprisingly hard to get cheaply in decent quantities. Here's what I've figured out so far.For one, it is absurdly hard to find sites that don't veer into fringe science when talking about hydrogen. HHO production, Joe cells, power your car with water...it all keeps cropping up, and not only does none of this do what I want, the concepts are often poorly documented or riddled with problems. However, I have been able to glean some information from my research. First off, one of the easiest methods (and the one I'll be pursuing the most) of hydrogen production is through electrolysis. For those of you unfamiliar with the concept, you can basically take two electrodes, stick them in water, add some electrolyte (like regular table salt), and apply a decent voltage. You'll get hydrogen gas streaming out of the negative electrode and oxygen out of the positive electrode. Fancier systems use large tanks, platinum electrodes, and a strong acid or base as the electrolyte. To increase efficiency (yeah, it's not 100% efficient), there is ongoing experimentation with high-temperature electrolysis and ongoing research into an effective electrocatalyst.Now, when I did my research, I thought "Hey! This sounds easy! I'll just set the system up like explained, and away we go!" Unfortunately, those exclamation marks were unwarranted. My first attempt showed that production is mind-numbingly slow with small electrodes. Using salt had the wonderful side-effect of producing chlorine and sodium hydroxide, a.k.a. caustic soda. It's called that for a reason, and I'm lucky I didn't run it too long or I might have a chemical burn now. Now I know. Choosing a good electrode turns out to be a problem too, as most conductors oxidize quickly or dissolve in the solution (now I know why everybody uses platinum when possible). My aluminum foil electrodes in a sodium hydroxide solution? Yeah, that didn't work AT ALL. I had better luck with steel mesh, but I recently found that it seems to fail over time too. The only thing that isn't disappointing is the container and the collection apparatus: an inverted plastic bottle with some airtight hose running off it, connected to a gas valve. If the bottle is placed such that forming gas causes the internal water level to be lower than the external container water level, the gas will be pushed through the hose (no pumping necessary!). There was one good thing I discovered, however. Apparently there was a bit of soap or something left over in the container, and I ended up forming a bit of explosive foam as well. The hydrogen foam blows up like nothing else, and the oxygen foam makes a loud pop and sends (slightly) caustic foam all over the place. Totally useless but still somewhat cool, so long as you're not fool enough to do it in large quantities.So, as of right now, I've got a good container and collection system, but my electrodes suck and production rates are so low that it'd take me hours and hours to inflate a good-sized balloon anyway. I'll be using sodium hydroxide in the future as the electrolyte, skipping the chlorine production and observing the proper safety procedures. My top priority is finding a good electrode, my next is finding a good way to increase surface area, and my last is getting a higher voltage source than the 12V power supply I had lying around. Any ideas?

Posted by Cognoscan 9 years ago


Make Your Own Fuel from Wine

Mark Armstrong's Alternative Fuel PhilosophyIf you don't like the vehicle or the fuel it drinks, make some of your ownIt's on every billboard, bumpersticker and street placard: Let's Green This City! Urban Streets Greening Project! Each election ushers in new green initiatives, task forces, and elementary school awareness fairs. Another press conference, another earthy guy in an organic-cotton denim shirt and red Crocs stands in front of City Hall pointing an accusatory finger at the uninspired plebes who won't join us, who won't dare follow San Francisco on the righteous path toward a greener tomorrow.Meanwhile, eco-conscious drivers can't get a drop of biodiesel in city limits, while Berkeley, Santa Cruz, Santa Rosa and other surrounding cities offer it at public pumps. (In June 2007, city authorities closed the San Francisco Biodiesel Co-op, for - get this - having too many members.) Not one public pump in San Francisco sells ethanol. The few electric car-charging stations that remain are defunct, rundown or hidden in corners of musty garages, forgotten relics of a well-intentioned but poorly executed past. Our performance so far in fostering alternative fuels - the keystone of the green movement - is not just ironic; it's shameful."You know the easiest job in the world is to be a cynic," says Mark Armstrong, lifting his head from the hood of an electric-powered 1980 Plymouth Horizon. "In order to be successful you have to do absolutely nothing." Armstrong brushes his oily hands against his oily jeans and walks to the back of a cavernous concrete-floored warehouse, through a maze of Frankensteinian inventions: an electrolyzer that splits hydrogen and oxygen fuel, junky gas cars that run on golf-cart batteries, gutted petrol engines that gulp alcohol and a Mercedes motor that bakes bread and spits out edible olive oil."What I'm trying to do here is teach people to quit complaining about what they can't get," he adds, pushing his 6-foot-2-inch frame beneath a gutted 1976 Porsche 914 that he and his students are converting to a hydrolic hybrid. "I say if we really want alternative fuel vehicles, let's get off the couch and start making them."Step 1: Build a Carmore

Posted by ewilhelm 10 years ago


diy elec bike assist

I guess I need to explain that I'm an old guy with a bad ticker. I also have some big time balance issues. I needed to get a little more active and work on my balance, so I bought a bike. The bike is about a million year old cruiser, so I had some work to do before I even took off on it. I cleaned and repacked everything. Then I switched out some parts to make it more comfortable. I replaced the sprocket drive set on the 26 inch bike with one from a 20 inch to make the peddles easier for me to reach. I also used the smaller drive sprocket. That might not have been such a good idea as I have to peddle more to get the same distance. I had intended from the start to install a helper motor so the pedal thing isnt really a big deal. I designed it this way. Motor: 24volt 250 watts from a kids scooter toy. drive: friction with a wheel that sits on the rear tire. Now the motor and mount I have worked out just fine. I'm waiting for everything to arrive so I can begin work. My question is about the power source. I really do not want the power source to ever run the bike. I simply want it to assist me climbing hills. I dont want to run out of oxygen (fuel) as is happening now. So this is my planned power set up, please tell me any flaws you see in it. One twelve volt battery 12ah complete with momentary on off switch. Push the button when I need a little assist climbing a slight grade. A completely secondary battery probably 7ah with its own momentary switch just to kick in on top of the first battery. When both are on, It should make a 24volt system for steeper inclines for just a few minutes at a time. What problems do you foresee. Any advice would be helpful. Did I mention I like to tinker with stuff. I found over the years when you buy something you learn to write a check. When you build something you learn lessons that are transferable to all problem solving. And my wife made sure I knew how to write a check early on.

Posted by retrophoto 10 years ago