So. I have a mohawk with shaved sides. I want my hair to grow longer quicker, like really fast. any ideas?

Ok, so I have a mohawk right?  :P  I want to make the back really long going down past my shoulders. I want to have my hair grow really fast though.  any ideas, like supplements or something cheap??  besides extensions and the eating healthy thing, cuz I already eat healthy and my hair barely grows a centimeter a month.

Question by HannahBarbaraHorn   |  last reply


What number are you?

With almost seven billion people alive on the planet, the BBC have produced a fascinating little widget for working out what number person you are.  All you have to do is input your date of birth. As you can see from the chart below, I was the three and a half billionth person on the planet when I was born. The set-up will also tell you how fast your home country's population is growing. What's scarier, though, is the data you get for today (27th October, 2011): as I type, almost 8.5% of all the humans to have ever lived are alive right now.  To put that in perspective, if the human population was stable, and not rising, then all 83 billion of humanity's historical population would have been born in the last 1200 years. 0_o

Topic by Kiteman   |  last reply


Thought I might start something near and dear to my heart here....Health, or self modding

As I searched for something on health, and didn't find one. Of course, the normal caveats are true, since none of us are able to diagnose or treat disease, this is only to point one in a possibly correct direction.

Topic by Goodhart   |  last reply


Deactivated Bone Growth Stimulator

I have a CMF bone growth stimulator that no longer works. These devices are set to die after so many uses. Does anyone have any ideas on how to reactivate these units? Or, hacking these things for another purpose?

Topic by wmlaveck   |  last reply


description of cell growth needed? Answered

Nowadays a question arose in my mind.it may sound stupid.animals  and humans take in food and then it is transferred from complex food to simple food.then it is transferred into energy. now i have the following question: 1)what type of energy is this?you know a bit, is this thermal or something something. 2)next if this is enegy a type of non shaped or non matter then does it help in our growth of cells.if it then how . 3)how is this energy helping us to move or do works? so its just out curiosity.thanks for viewing and further answering.bye

Question by argha halder   |  last reply


What is this bright yellow growth on this log? Answered

No camera editing of any sort (no contrast or anything: it's really that brilliant Big Bird yellow). Found it in the woods here in Northern Vermont. What is it? It looks so cool, doesn't it? Photos taken summer '08.

Question by Pompom   |  last reply



Will low e windows effect plant growth in a greenhouse?

I have a bunch of low e, argon filled double pane windows that I want to build a greenhouse with. Will the plants inside the greenhouse be adversely effected by this type of glass? I am not a "sciency" type - please advise me.

Question by Taskar   |  last reply


Websites that give you info about the care and growth of many plants.

I need a list of websites that give the following info about a few plants (mostly veggies and fruit.) 1) zone 2) uv light needed 3) water needed 4) growth period and some care tips Thank you in andvance

Topic by crc09 



how much potassium nitrate should i use to speed growth of watermelon seedlings?

Hi, I have several KG's of potassium nitrate, and am currectly growing watermelons, among other plants, however my concern is mostly with the watermelons. I live in mackay, tropical queensland, the sun here is very harsh, and when the wind blows, well, its pretty hard. i have only a limited amount of time before these seedlings use up all the nutrients in their dirt, (they are currently in an egg carton filled with dirt), and each their maximum size before they start to starve. I want to know, how much potassium nitrate i can use to boost their growth to get them as big as possible for when they go outside. Where i live, the house is pretty aerodynamic, you exprenice windyness from all four sides, so i need them as strong as possible for that time that i plant them outside, in large individual pots, until theyve grown enough to be planted around my spoon drain. Anyway, i need to get them to grow ALLOT, and i have the potassium nitrate, however, nitrate is toxic to plants, so i need to know what a safe quantity might be. im not asking for the exact best value, but just anything that will aid in boosting growth before they get repotted would be great. thanks. also, my tomatos, black russian and some random huge tomato, is growing very slowly, would nitrate help them also? and pumpkin, when the seed sprouted, part of the seed was dead, and so two starter leaves were bound together, and died, leaving it leafless. new leaves are starting to appear, but not fast enough as its turning yellow, again, would nitrate help?

Question by oldmanbeefjerky   |  last reply


What metals (Copper) or a Silver oxide-Copper solution on Mold with EMF from High voltage spark gap should I use for a project?

I am having problems deciding if I should use diluted silver nitrate on agar (Cocoa agar with sugars) or just add silver oxide and copper or copper powder to plates with Pencillum I growing on them then expose them into an aluminum sheet to fit three plates.This will determine if EMF alone (30 or 60 minutes, etc) or combined with small amounts of copper and silver (II) oxide mix or copper would prevent or kill spores? Alone EMF from high voltage may just inhibit growth but the silver copper mix may totally kill them!!It difficult since a correct dosage of this silver-copper mix must be used or copper. If it is too high it will prevent any growth before the EMF can have any effect. So maybe I need to dose it with 1g 5g and 2.5 g silver copper and see which one has modernate growth inhbition effects. Each test will be done together to save time.

Question by SHOE0007 


can i remove the cyst/tumor on my dogs leg myself?

My boxer has a growth the size of a grape dangling off her forearm.the skin attaching it is the diameter of a shoestring. can i cut this off and bandage it? or is this a mandatory vet bill?

Question by torinbh   |  last reply


What is this green globby goo in my driveway? Answered

What is this stuff?? I noticed this green slime in my driveway one day. It's sorta gel-like, has some air bubbles, and is centered around greenery. I can sorta pick it up with a stick and it jiggles and doesn't really come apart. It reminds me of seaweed kinda. It was mainly located in the center of my driveway where we have weed growth. The appearance happened to coincide with a long bought of rain (nearly several weeks). I also noticed some in areas of our lawn and near the edges of our gardens. This is in Northeastern Vermont, photo taken this summer, '09. PS--I apologize if this is too picture heavy. Please let me know if it is. I just like sharing all the neat photos of this strange substance that looks like Slimer from Ghostbusters!

Question by Pompom   |  last reply


I need to make a irrigation system that lime won't block and will help cut weed growth?

 It can use a timer or electronic value but it must be cheap and run on no more than 12 volt. We live in an area of hard water, I have tried the soaker hoses but they block with lime very very quickly. The water will be from a water butt, so low pressure I was wondering about drilling 1mm holes in 1/2" pipe and leave it underground like a soaker hose.  

Question by willow20   |  last reply


How to create an Adiabatic, Isochloric and Isobaric Environment?

I am trying to make an chamber to examine the growth of a micro organism in the above condition. The chamber temp. should be maintained at 95-100 C and. The environment should be tends to vacuum(Vacuum condition is practically impossible). Please help in choosing the material and conditioning the same.

Question by dashinfoline   |  last reply


How to identify mushroom / fungus growing in watermelon pot.?

  The medium used is coco peat from south India. The fertilizer used is organic seaweed imported from South Africa. I want to know whether its an infestation or beneficial for my plant growth? THE PIC:http://www.freeimagehosting.net/uploads/f6196f211f.jpg

Question by charmneo   |  last reply


automated hydroponic system ?

Hello, I want to make automated hydroponic grown plant system that will sense condition and provide sufficient Mineral Nutrients for growing hydroponic plant.  we place the seed into water, seed grow into water , growth should start after 2 or 3 weeks.we don’t feed fertilizer until the first set of true leaves appears When seeding develop their true leaves and roots. Its time to feeding fertilize.we need to provide right fertilizer for good growth Most common fertilizer is NPK, after two or three weak or after the first set of true leaves appear we need to fertilize plant. Fertilize approx every two weeks Automated system (small and low cost system) Parameter – conductivity Project part list Electrodes probes Micorcontroller Amplifier or filter Resistor A to D converter Ic Volve or relay Automated system that Add more or less fertilizer into water ,that maintain conductivity range Best time to fertilize plant Time- fertilize plant after their active growth ,after two or three weak or after the first set of true leaves apper we need to fertilize plant ADD small value of NPK into water because small plant take less fertilizer After two weeks Add large value of NPK into water because large plant take large fertilizer Provide enough NPK to complete their life cycle we can measure conductivity of whole solution. how to make Automated system that will Add more or less fertilizer into water on basis of conductivity If plant need more or less fertilizer system  will adjust itself

Question by vead   |  last reply


Fungal Fun: What are these small blue slimy wild mushrooms? And what about these big red buddies? And these...?

Small Blue Slimy Mushrooms?  Found these blue mushrooms peeking out from under damp, decomposing fallen foliage and such, behind our shed (location: Vermont).  These were maybe less than 2" tall, and they were slimy (sorta "doctored" the photo by carefully brushing away debris including pine needles that were sticking to the mushroom tops).  They're so cute!  Big Red "Ugly" Mushrooms?And while I'm at it with asking a mushroom related question, what are these big red ugly buddies?  They were found right nearby the blue babies above, but were growing off of a mossy tree stump.Wavy White/Brown Mushrooms?And while we're at the stump, what's this neat wavy growth?  It was on the top of this particular stump.White Fungal Growth?And again, with the stump, on the eastern side of it was this white fungal growth that I don't know what is either.Thought I'd include a photo of all the above discoveries together, since they in fact were found in just the same area.Giant Face-Sized Mushroom?This photo was taken two years ago, but since I'm asking all these mushroom related questions, thought I'd spew them all out.  So, what's this giant/face-sized one?Location for all this fungal fun is rural northern Vermont.  Having a hard time searching online, and just was hoping I might get lucky like last time with my asking about the dog puke fungus and green slime identification.  There's just so many neat things outside! :-)

Question by Pompom   |  last reply


Questions about led

Hi! 1 :trying to find out if there are any  problem (caused by the red leds lower forward voltage) or not to drive blue and red leds with the same driver when connected in series.  2: if you drive  blue or  red led with lower capacity than rated (ex 2w instead of 3w) could that affect the wavelength for resp color could a red 660nm become a 630nm? the questions concern a growth lightsource thanks  

Topic by kristerh   |  last reply


Bacon Jalapeno Poppers, Lady Gaga Hairdo, DIY Diamond Ring

Bacon Jalapeno Poppers Lady Gaga Hairdo DIY Diamond Ring Amazing Tesla CD Turbine Yip Yip Costume Glowing Birdcage Necklace 5 Vinegar Secrets Cloth-Covered Cables English Breakfast Pizza LED Plant Growth Light Wooden Puzzle Cube RFID Projects DIY Barbecue Vodka Infused Gummis Low Carb Pizza

Topic by randofo 


Tomorrow

Tomorrow is the Science Fair at my school and I'm not finished yet. My aim is, Will Climate Change Affect The Growth Of Grass In The Next Ten Years? I've done the testing and I'm writing the conclusion. I need to know some plants that are sensitive to temperature changes. I have already searched and can't find any (I must have very bad searching skills). I also need to know what kind of chemicals that plants use. I'm kind of panicking right now!

Topic by DELETED_Gavabc123   |  last reply


Shell says "Peak oil in 7 years."

In a recent e-mail to Shell employees, Shell CEO Jeroen van der Veer writes:"Regardless of which route we choose, the world's current predicament limits our maneuvering room. We are experiencing a step-change in the growth rate of energy demand due to population growth and economic development, and Shell estimates that after 2015 supplies of easy-to-access oil and gas will no longer keep up with demand."2015 is seven years away and with limited resources and an expanding population we are sure to see more and more limitations on resources we take for granted. Water, cooking oil, and food are also in that list.The e-mail goes on to say that little will likely be done about this situation by any governments until the poop has really hit the fan and by then it will probably be too late. Two scenarios are laid out in the e-mail, Scramble and Blueprints. One is a mad dash towards a solution as we hit the problem head-on and the other is to make a plan now for the inevitable.Personally, I hope for the Blueprints scenario, but I feel like the Scramble is likely what we'll be doing. link

Topic by fungus amungus   |  last reply


Need advise on starting screen printing business

Hi Folks, I am fascinated by Screen printing. I know a little bit of it. But I would like to have advise from the experts here for me to start it as a serious business. What is the prospectus of growth in this business? What could be the initial investment (minimum)? What is the minimum no. of man power required? What is the latest technology adopted? etc etc... Could you please advise me on how to go about it in a beginner level? Thanks.

Topic by rajkochi   |  last reply


Scholarship Robot Proposal: Plant Gardener

This robot would tend to a high value plant. The plant would sit atop the robot and the robot would seek to maximize light during the day. It will slowly rotate on itself to allow all sides of the plant equal sunlight ensuring an even growth. It will slowly travel accross the room seeking sunlight from other windows as the day progresses. Finally, it would detect people walking by and wuold warn them when the plant needs watering. Simple idea with achievable goals. Thanks for your consideration!

Topic by loubard   |  last reply


Plants slowly dying in an odd way, any gardeners out there who can tell me why? Answered

I have an aerogarden with some strawberries.  They started just fine but they recently ran into some trouble.  The leaves started yellowing.  I did a little research and it seemed to match the symptoms for magnesium deficiency.  I switched nutrient mixes, thinking that might help, but it seems like it isn't getting any worse or better.  It's looked like this for about a month, not much growth, not much die off.

Question by finfan7   |  last reply


Texas Windpower = Big Money

Texas is now far ahead of California, and the rest of the country, in production of wind power.From the NYTimes:Texas, once the oil capital of North America, is rapidly turning into the capital of wind power. After breakneck growth the last three years, Texas has reached the point that more than 3 percent of its electricity, enough to supply power to one million homes, comes from wind turbines.Texans are even turning tapped-out oil fields into wind farms.

Topic by canida   |  last reply


LED lighting capable of reef aquariums?

Using 5m 420nm to 680nm blue and red LED getting enough "light" past 18 inches of water to allow live rock and coral growth. How many LED's are needed? Has anyone else done it? Ridiculous is the price as soon as you put the word hydroponics or aquarium on a item. Like some help building one 36"x 12" that would pentrate 18" of water at what 3000 lumens? Pars? Buying "supplies" here in Kanada is another use of that "R" word.

Question by peninbrant   |  last reply


I have glucose tabs (for diabetics), which I think are much more pure than sugar, would this help my plants grow better?

I am trying to grow citrus seedlings and have been finding mixed reports about the affects of sugar water (instead of just using regular water). I was wondering if glucose tabs, being more pure than sugar, would help my citrus plants grow.

Question by ralegg   |  last reply


Would these mods be cool?

Hey I have some ideas for a DS mod, a Game Boy mod and a NES mod. What do you think? 1. DS lite in a DVD case (so it can be stored on a shelf) with solar cells instead of the li-ion battery 2. Game Boy in a scientific calculator (GB Pocket, of course) 3. Working NES console around the size of a double bed (with removeable controllers and games to the same growth ratio) It would be a real help if you could post comments on what you think (constructive critisism only)

Topic by Wingwire   |  last reply


Sixty one million people get spun by Daily Mail

The UK population has hit a 47-year high of 61 million, "...with changes in birth and death rates now a bigger cause of growth than immigration." (BBC).Less than 25% of all births in the UK are to mothers born outside the UK.What's the Daily Mail headline?The migrant baby boom: Foreign mothers help push Britain's population past 61mThe Daily Mail; racist in public, so you don't have to be.BBC versionDaily Mail VersionThe UK's changing demographic

Topic by Kiteman 


temperature contral Via thermal cupplers

I am just starting out I have built several Bio stoves in the past few years .  The cost of fuel wood,wood chip, saw dust ,grass leaves , brush paper all house hole wastes but plastic bone and metal . are the fuel's it will cook . In the end you are left with Bio dust charcoal and it is a 100% natural soil additive that improves plant growth . No green house gasses . and just a little ash from the fire retaining feeder. Any way I need to control at lease 4 to 5 temperature . all are inter related . all temp. feed backs will control digital speed controls to maintain temp.

Topic by OldManRobbie   |  last reply


Wanted Arduino Advice For Teenager

My son has expressed an interest in Arduino because he's in an after school group of "builders" in which a number of students are toying with Raspberry Pi. He was told that Arduino can be built using a ChromeBook - we don't own a Windows computer (only Macs). He believes that he could build using YouTube and other computer based research. Can someone tell me if Arduino is compatible with ChromeBook? With so many kits available, can you please advise one that will engage him for multiple projects and may even be used for growth but at the same time is not going to break the bank? Any advice is much appreciated!!

Topic by woooshhhhh   |  last reply


How to repair, not replace, refrigerator door seal?

We have a 1972 Coldspot 3 door refrigerator/freezer that has leaking door gaskets that are causing condesation and mold growth on the outside of the door. My father loves this 40 year old "antique" but for the cost to replace the 3 magnetic door seals, about $200.00, we can by a pretty nice used late model fridge.  Is there any way to tune up the old magnetic seals to function properly again. I am considering adding a form a gasket or silicone to the existing seal surface and closing the door onto an oiled or waxed surface to create a "custom fit". Any thoughts would be appreciated.

Question by dwj_jackson   |  last reply


Easy Pi Software Programming Language Recommendation Need? Answered

I have a 2011.12 Pi that I was able to Hello On a screen , mouse, keypad, load the appropriate Sandisk from the web. Tried some of the programs and put it away. Now I have a dedicated application that will be running a stepper shield (orbit 4 bacteria tubes) stop every hour and use a 14 bit ADC to measure growth rate by red LED reflection, storing / sending results 24/7 for a month at a time.. I don't do well with 'C' and hate graphic programming.  Machine or compiled Real Basic is my forte. What would you recommend for me please ?

Question by iceng   |  last reply


See how it all began (but please don't visit!)

A news article on Nature today reports a find of living, growing stromatolites in an Andean saline lake (first image). Stromatolites are layered growths of cyanobacteria (photosynthesizing algae), and constitute some of the oldest (3.5 Gya!) macroscopic fossils known (second image).Update: My writeup above might be a bit misleading. This is not the only known stromatolite colony; Shark Bay, Australia, is the most well known, and there are a few in South Africa. This discovery is important both because of the altitude, and because it's an inland site without contamination.Note: If you don't understand some of the words above, open a new browser window, type "wikipedia" in the search bar, then cut and paste the big words into Wikipedia.

Topic by kelseymh   |  last reply


Can I grow tomatoes (and other vegetables) in part shade (4-5 hours)?

I've recently moved into a new house (I'm not telling you where) and the backyard only receives 4-5 hours of sunshine per day. I'm wondering if my vegetables requiring full sun will still grow? I'm tired of seeing the same old "it must have at least 6-8 hours of sunlight each day" . If this is still not possible then I will consider a hydroponic system with growth lights under my stairs... I was always interested in hydroponics ever since I saw an advertisement for the AeroGarden, but I never actually tried to build a system and I definitely can't afford one.

Question by awang8   |  last reply


Bottled light in the Philipines

There's a novel, simple idea spreading in the Philipines - using bottles of water as skylights. The concept is staggeringly simple - slum dwellings are dark, and need light, even in the daytime. Though they have electricity, it is the most expensive in the area, so they can't afford to use powered lights. Instead, they use water. A two-litre bottle of water, with a little bleach to prevent algal growth, is set into a section of metal sheeting, which in turn is set into the roofs of dwellings, workshops, even chicken-coops.  The water-bottle refracts the light in all directions, instead of letting it shine through in a single beam, and provides as much illumination as a traditional 60W bulb. OK, so this is old news to some people, but it's new to me. For more information, have a look at the Litre of Light website, or just have a poke around Google and YouTube.

Topic by Kiteman   |  last reply


Site improvement suggestion (we need meta-categories too, btw)

I have a feature request/suggestion for instructables.com.My suggestion would be to provide a menu bar option (where "Explore", "Groups", "Forums", and "Contribute" are currently) for a user of the site to suggest and request a type of instructable, and provide information about what they'd like to see.I feel that this will provide a number of benefits, and virtually no drawbacks. I will attempt to list a sampling of both if I can... I'm going to begin a couple of terminology conventions to make my idea easier to write out. From here on out, I'm going to refer to REQUESTORS as people that have an idea for an instructable that they either would like someone to pick up and do from beginning to end, or possibly a little assistance on an instructable that they've began and have a stumbling block that they need help with. I'm going to refer to WRITERS as people who write up an instructable, simple as that.-- This will allow people one central location to ask this terrific community for help with an idea that they've got in mind.-- It would serve in a way similar to the "want it" option on ebay does... Only to create a marketplace of ideas. Currently on Instructables, there seems to be, at least in a small way, a reputation system where the quality and quantity of your instructables may be a source of pride and mutual respect for the users. Some WRITER may be looking for ideas to write up, whether from beginning to end, or help solve someone else's stumbling block. They go out to the requests page (or even do a search for it) and see if anything strikes his or her interest.-- If you think about it, a lot of the biggest and best user contributed sites are successful based on the workflow organization, and how efficient they are (wikipedia comes to mind). This idea would further increase the efficiency of instructables.com, allowing for larger rates of growth. I'm not going to place value judgments on growth for growth's sake, but that's for the people that provide this great site to consider and decide for themselves.-- It would help clean out the forum a bit.-- I guess it could also help tip the balance in the "marketplace of ideas" that I mentioned before. Right now in instructables, it's not always easy to tell what a user has to bring to the table in a discussion unless they've got a few instructables out there to judge. If you have a request system, you could look at what kinds of things they ask, and get to know them a little better that way.--in my opinion, one of the biggest neat benefits would be the additional opportunity for isolated users to connect with others who are interested in the same types of things as they may be (or you, or me). This would enhance the learning environment, the sense of community, and benefit everyone.Negatives:--additional complexity--frivolous requests (like that never happens now, right?)--time and expense for implementation--site aesthetics, maybe?I'm certain that my idea could use some tinkering, but that's kinda the spirit of this site, isn't it? I already have some ideas about this along the fringes, but I'd rather wait and see if this gets any kind of response.

Topic by Subvert   |  last reply


Is corrugated plastic (the type commonly used for signs) a good covering for a greenhouse?

I'm in the planning phase of a greenhouse next spring and I'm wondering if the corrugated plastic that you usually see election signs made of would be good for a greenhouse covering. Has anybody tried this? If so, could you post your results? Here's some information I've come up with already: 1) Corrugated plastic is relatively cheap as dirt compared to glass and corrugated polycarbonate panels marketed under "Palruf" and "Suntuf". 2) There is a greenhouse covering marketed as "Solexx" that appears to be nothing more than corrugated plastic and is claimed to be superior to glass and polycarbonate panels. It's also very very expensive. 3) Solexx panels are claimed to diffuse the light coming into the greenhouse. This is supposed to be better for the plants than direct light from glass or polycarbonate. Below is an excerpt from the Solexx website: "How does light diffusion affect plant growth? Plants create food from light so the type of light they receive is important. Plants exposed to direct light (no diffusion) produce a majority of their food from the top leaves facing the sun. The select leaves absorbing the sun energy do most of the work while the shaded leaves do very little. Direct light also creates excessive heat which causes plant stress. When a plant is immersed in diffused light, all the leaves can photosynthesize resulting in more food production and healthier, fuller plant development. In addition, the upper leaves of the plant receive less intense light which means they will not suffer from plant stress caused by sun burn and excessive transpiration. " Again ,if anyone has tried using corrugated plastic as a covering for a greenhouse could you please share your results? If anyone has their own comment or prediction please share it. If not, I plan on conducting an experiment to test the performance of different greenhouse materials on plant growth. I may have to use artificial light instead of sunlight however, since the growing season here is coming to an end.

Question by EcoMotive   |  last reply


I hear about it through Tech Shop

I went to the I3d summit this past week during the Autodesk event in Vegas. I found out about this event through the new Techshop Chandler location, and with my ASU ID I got a free ticket to the event which was awesome. I was mainly interested in this event to find out more about design software and 3d printers. I found the event to be very useful for getting a general idea of what the industry is doing and where it is going. Being a non engineering or design expert, just a guy with an interest, I didn't get as much as I would have I liked. I heard from a lot of speakers but one of the most interesting to me was Alice Taylor who is CEO of MakieLab. She was one of the few speakers who are currently running a competently 3D printer based company and discussed how they have found success. Also, the key note speaker, Jeff Ma, was very interesting and drove home one of the main points of the day; just try, don't put to much time or effort into over thinking, put more into action. That is kind of the vibe that I got from the whole event, that a lot of people don't know what this industry is but there much hope for its growth and impact on society. www.techshop.ws

Topic by travisb   |  last reply


Go Green!

Just kidding!  Thanks for having me in your group.  It´s been awhile since I have been back to AA but it will always be one of my homes.  Please take time to check out my instructable for Agave Wood Personal Theater.  Hopefully, later today it will be approved for the Wood Contest (still waiting). If any of you visited the UM botanical garden this past summer you may remember their agave americana was in bloom after 80 YEARS of growth and waiting.  Here´s a link http://www.mlive.com/news/ann-arbor/index.ssf/2014/07/u-m_botanical_gardens_80-year-_1.html . My project was made using the same variety of agave and with the flower stalk and thorns.  In addition, I used nopal cactus (prickly pear) and a homemade wax to finish it.  Thats´s it.  It is 100% natural and vegan.  I know these words can make some squimish but for real when was the last time you could say that about technology? Please visit my project and feel free to comment:  I would love to find collaborators to work with from your organization when I visit AA in the summer. GO GREEN!  GO BLUE!

Topic by Pitera Man 


H202 production

Wondering if any one have come across a video showing the steps or know how to do this and how to extract H2O2 form the solution to make hydrogen peroxide like discribed from wikipedia article http://en.wikipedia.org/wiki/Hydrogen_peroxide#Manufacture i know i just cut and pasted to make it easer the history  barium peroxide with nitric acid. An improved version of this process used hydrochloric acid, followed by sulfuric acid to precipitate the barium sulfate byproduct.  Sodium peroxide also makes H2O2 Na2O2 + 2 H2O → 2 NaOH + H2O2 those are hard to come by for DIY and thought maybe this would easier  inorganic processes were used, employing the electrolysis of an aqueous solution of sulfuric acid or acidic ammonium bisulfate (NH4HSO4), followed by hydrolysis of the peroxodisulfate ((SO4)2)2− that is formed. peroxodisulfate commonly referred to as the persulfate ion

Topic by symboom   |  last reply


All Ears, The Future of Making in Singapore event

The crew from Autodesk Pier 9 and Instructables is coming back to Singapore! We are so encouraged by the growth of the maker and innovation scene there. This international movement is growing and evolving and sometimes it's important to take stock and see where we're going and what we want to be doing. So we'd love to invite you to The Projector on June 4th  2016 from 2pm - 5pm to discuss the Future of Making in Singapore. We're hoping to reach broadly and invite some of the active members and organizations in Singapore, feel free to FWD this invite someone you think we've missed! You can RSVP and find out more details here. We are also inviting speakers to give a 10-15 min talk on any topic related to entrepreneurship, maker movement, 3D printing or anything that might be interesting! Feel free to reach out to us if you are keen to present a topic or know of someone who might be. Following the presentation session, there will be a panel discussion with Eric Wilhelm and community leaders in Singapore to share their thoughts on what the future holds for the sunny island nation. We will also be holding an Instructables Show & Tell on 7th June 2016 from 6 – 9pm at Autodesk Asia, where we would love to see what crazy and amazing projects people have been building here! More details can be found here.

Topic by ewilhelm 


Abnormal Cyst Within The Jaw Anyone?

Well this is just too interesting not to post. Turns out after going to the dentist for a routine cleaning, that I have a spot in the right side of my jaw he wanted looked at. After going to a dental surgeon he concluded that it is a type of cyst in the bone of the jaw that forms when a wisdom tooth doesn't come in but instead forms a growth of tissue in that cavity. So thinking this was what was going on he went ahead with the normal procedure. To numb me up till I'm almost knocked out, cut the gum line cut the jaw bone to the area and then grind (yes grind with a drill...) the cavity out. After the cyst was removed they would then continue to grind the walls of the cavity to fill in the "hole". From there it would fill in and regrow the bone tissue and heal everything back up with time. But of course that wasn't the case with me. While he was working everything was fine until he came to a hollow area. Hollow. No cyst, no tissue, nothing but a string of a nerve running right through the robin egg sized pocket of air in the middle. He was very confused but after looking at it proceeded to just grind the edges to fill it in and took some for studying. In his 30+ years of doing this he has never heard of or seen anything like it. But he says there's not really anything wrong and that it should be fine. Still....now where's that gauze I had...

Topic by Rockerx   |  last reply


Circuit board heat Trouble. Answered

Full disclaimer, I am still learning and at my current skill level I am essentially following a picture book showing how to hammer a nail then emulating it, Hope that analogy paints the picture correctly. Now for the problem! I have embarked on a journey of growth and learning, in said adventure I took a personal challenge of building something and hopefully learning in the process. Needless to say I did learn, some lessons more painfully than others (soldering Irons are HOT *Sigh*) but I am at an impasse. You should see attached (hopefully) one schematic and two photos. The schematic correlates to the board of course. The next two are of the silkscreen on the board (empty) and the board upon "completion". If you notice in the empty board photo I have drawn your attention to a specific area, the area in question. In this area there seems, during testing, a decent amount of heat build up. Now this may be normal, I do not know. The device calls for the use of three Protected 18650 Lithium Batteries (3.7V I believe). I attempted to do a continuity test with what I thought was under voltage, in hindsight, I'm not sure whether the power cells are in series or parallel so perhaps I was not under? anywho that is when I noticed the heat in that area. I hope I have illustrated my predicament enough for a solid enough understanding, If not I apologize. Please ask any information you require. 

Question by Dauntless   |  last reply


"Your Environmentalism Sucks!" Says WIRED

The cover story of WIRED this month has been published online and you can read their 10 "heresies" about the environment. They're clearly trying to shake things up by telling people stuff that sounds so wrong, but is obviously right according to them.The gist of WIRED's philosophy is that it's all about the carbon dioxide emissions and that every discussion should be framed entirely by this. After that setup, each article is a quick hit against some supposedly sacred cow.The full list of articles is below and here's a response from ecogeek that continues the discussion. So what do you think?Live in Cities: Urban Living Is Kinder to the Planet Than the Suburban LifestyleA/C Is OK: Air-Conditioning Actually Emits Less C02 Than HeatingOrganics Are Not the Answer: Surprise! Conventional Agriculture Can Be Easier on the PlanetFarm the Forests: Old-Growth Forests Can Actually Contribute to Global WarmingChina Is the Solution: The People's Republic Leads the Way in Alternative-Energy HardwareAccept Genetic Engineering: Superefficient Frankencrops Could Put a Real Dent in Greenhouse Gas EmissionsCarbon Trading Doesn't Work: Carbon Credits Were a Great Idea, But the Benefits Are IllusoryEmbrace Nuclear Power: Face It. Nukes Are the Most Climate-Friendly Industrial-Scale Form of EnergyUsed Cars - Not Hybrids: Don't Buy That New Prius! Test-Drive a Used Car InsteadPrepare for the Worst: Climate Change Is Inevitable. Get Used to ItCounterpoint: Dangers of Focusing Solely on Climate Change

Topic by fungus amungus   |  last reply


A Question About the Universe and Infinity

I have a rather brain-bending question for you. If the concept of infinity exists,(which it does), then shouldn't matter be infinite just like numbers? The universe is made up of matter, and at a certain point (we believe) it just stops. No more universe. But then, how does that make any sense? How can there be nothing? From alot of intense thinking on my part, as well as some digging, I have found that the concept of infinity works in two ways:  1. You can have an exponential growth of numbers, going on and on infinitely. 2. You can take a finite number such as 1, and divide it infinitely. Both of the above create infinities, so technically, a finite amount of matter (such as the universe) could be infinite, or that is, infinitely split in half.  But what about the first infinity? Numbers are infinite, but is matter bound by the same rules? Does this expose a flaw in the way we think about the universe?  The same issues occur in our concept of time, if it is measured with numbers, shouldn't not only the future, but also the past be infinitely long? I have also heard (and believe) that time is an illusion created by humans to create order in things, and the only reason it looks like it is moving forward is because of entropy. In which case, I must ask, doesn't this make time travel possible? (I realize this gets into the whole 4th-12th dimension thing, but I wont go there.) If you could maybe give your thoughts on this barrage of questions that would be great. Thanks

Topic by vroom...vroom...   |  last reply


Innovation: 'How-To' Web Sites Let You Learn Just About Anything - Instructables in Fox Business News

Innovation: 'How-To' Web Sites Let You Learn Just About AnythingNew York -- Want to learn how to make your own roll-up keyboard or a computer case made out of Coca-Cola cans? What about how to drive safely in rain or silence a barking dog? A slew of Web sites claim to have all the answers.How-to and self-help Web sites have been around for sometime, but the proliferation of user-generated articles and videos thanks to Web sites like YouTube and blogs, has resulted in a slew of sophisticated portals that rely on social networking to teach us how to do just about anything....At instructables.com, video and pictures are a big component, as is the quirky. A quick visit to instructables.com and you can learn how to make a wireless Internet cantenna, a roll up keyboard and even how to dodge a military draft (if there ever is one again).Instructables.com, which went live in 2005 and has been seeing "rapid" growth of close to 10% a month, said Eric Wilhelm, founder and chief executive officer. "Users post what we call instructable articles that have text, images and video and show something they are passionate about." Users rate the so called instructable and often times replicate the projects, he said."I think it will grow a lot bigger because there's a lot of intellectually curious people...and they want to see other smart people," said Wilhelm. "Everybody wants to learn."More news articles about Instructables here.

Topic by ewilhelm   |  last reply


Indoor LED plant lights

I am new to posting in the forums, and actually am not even sure if this is being posted in the right area. My name is Ryan, and I need some help. I have been growing spices/herbs for my own recipes for a couple years, and have always used artificial lights. I use a whole wack of those spiral florescent lights (The 23watt ones to replace a 100watt light bulb), and it works alright. I now want to create a panel of LED's so that I can increase my lumen count, and therefore increase the rate of growth. I need help with how to use resistors to get the power to what a 50 LED panel would need. LED: wattage: 1 watt Forward Voltage : 2.1V~2.3V Forward Current: 300mA. ATX Power Supply: Wattage: 250 Normal 120 volt Canadian power I want to make a panel that has 50 1watt LED's in it, power it from a modified 250watt ATX power supply, and if possible, power more than one from a single PSU (Power Supply Unit) (Something like a quick connector setup, have all resistors panel side, and have cords running to the PSU where it uses quick connectors) I want to use the PSU because I have three at my disposal. I was thinking that it would only need 50 watts or something, and I could wire it in series, however I don't know what resistors to use, or where to use them, to make the power work for the LED's. I can wire thing together, solder, and have a basic understanding of circuitry (Like power flows this direction, and this will do that...... don't know numbers)

Topic by MaXoR   |  last reply