Could someone use activated carbon to produce hyrdogen out of water extremely fast because of the huge amount of surface area? Or would that not matter?
Topic by guyfrom7up | last reply
I have a carbon bike factory in china mainland and can design the carbon bike as you like .You can check the enclosed pircture which we produced for the customer . If you are interested in this ,you can contact me by Msn or mail : firstname.lastname@example.org. Or we can talk about this kinds of products .
Topic by russ110 | last reply
Seeking a source for remnants carbon fiber felt, will use as combination wind screen chimney internal liner to prevent loss of heat to the environment can use piece sized 4 x 24 inches-minimum. thickness 5 mm, 7mm or better if possible. carbon fiber is usually sold by the sq. yd./meter- i know that carbon fiber felt exists but can't seem to locate same, free or cheap is best, thats why i'm looking for remnant material. thanking you for your help big al
Topic by big al 1048 | last reply
Hi, I'm working on a project that measures outdoor air quality. Wondering if anyone knows a CO2 sensor that's not too difficult to use with a microchip (bs2 or arduino)? or knows of any links to air quality projects (the ones on MAKE seem to be broken links..) thanks! Kiera
Topic by kieranof | last reply
The Nikola Tesla group forum is asking for new projects, so I'm posting this as a suggestion. I would love to build it myself, but I lack the tools and money. This is my first contribution to Instructables, so please comment constructively. Nikola Tesla invented the Carbon Button lamp as a kind of incandescent light, because Thomas Edison banned him from using his incandescent filament bulbs. Nikola later discovered that versions of it could also be used in wireless, trans-Atlantic telegraphy, and to investigate what we now call x rays. In fact, he even used the lamp (or something similar to it) to take x-ray photographs, 8 years before Wilhelm Rotgen discovered them.For this reason, I must warn you: this device may possibly generate x rays. I am not responsible for any harm of any kind that may or may not result from re-creating this interesting device. There are phosphors that you can buy that will absorb x rays and re-emit them as visible light. I recommend that you coat the bulb with it until you know for sure that the x rays aren't strong enough to hurt you, or if makes x rays at all. Mixing it with a phosphor made for uv light wouldn't hurt either. Theory of Operation:The bulb is powered by a Tesla Coil, or other source of high voltage, high frequency current, such as a driver for a plasma globe (actually, the modern plasma globe is descended from this kind of technology!)When the power is turned on, electricity bombards the carbon button. Because carbon isn't the best conductor, this causes the button to heat and release electrons into the bulb's vacuum (the technical name for this is "thermionic emission," or the "Edison effect") . These electrons, in turn, excite the remaining air molecules and cause them to create visible light. This is strikingly similar to how fluorescent lamps work!Supposedly, the bulb should shine 10 times brighter than an incandescent bulb.(Note that the excitation of the air molecules, not the incandescence of the button, is actually the main source of light from the bulb.)If anyone decides to build it, please post an instructable showing the steps and finished product. I suggest you get started by reading the patent, number 514,170. You may also want to read part of Tesla's lecture, "Experiments with Alternate Currents of High Potential and High Frequency."To anyone who will attempt this, I wish you good luck!
Topic by ElectricUmbrella | last reply
The Nikola Tesla group forum is asking for new projects, so I'm posting this as a suggestion. I would love to build it myself, but I lack the tools and money. This is my first contribution to Instructables, so please comment constructively.Nikola Tesla invented the Carbon Button lamp as a kind of incandescent light, because Thomas Edison banned him from using his incandescent filament bulbs. Nikola later discovered that versions of it could also be used in wireless, trans-Atlantic telegraphy, and to investigate what we now call x rays. In fact, he even used the lamp (or something similar to it) to take x-ray photographs, 8 years before Wilhelm Rotgen discovered them.For this reason, I must warn you: this device may possibly generate x rays. I am not responsible for any harm of any kind that may or may not result from re-creating this interesting device.There are phosphors that you can buy that will absorb x rays and re-emit them as visible light. I recommend that you coat the bulb with it until you know for sure that the x rays aren't strong enough to hurt you, or if makes x rays at all. Mixing it with a phosphor made for uv light wouldn't hurt either.Theory of Operation:The bulb is powered by a Tesla Coil, or other source of high voltage, high frequency current, such as a driver for a plasma globe (actually, the modern plasma globe is descended from this kind of technology!)When the power is turned on, electricity bombards the carbon button. Because carbon isn't the best conductor, this causes the button to heat and release electrons into the bulb's vacuum (the technical name for this is "thermionic emission," or the "Edison effect") . These electrons, in turn, excite the remaining air molecules and cause them to create visible light. This is strikingly similar to how fluorescent lamps work!Supposedly, the bulb should shine 10 times brighter than an incandescent bulb.(Note that the excitation of the air molecules, not the incandescence of the button, is actually the main source of light from the bulb.)If anyone decides to build it, please post an instructable showing the steps and finished product. I suggest you get started by reading the patent, number 514,170. You may also want to read part of Tesla's lecture, "Experiments with Alternate Currents of High Potential and High Frequency."To anyone who will attempt this, I wish you good luck!Patent: http://www.google.com/patents?id=UpldAAAAEBAJ&pg;=PA1&dq;=514,170+tesla&source;=gbs_selected_pages&cad;=0_1Lecture: http://www.tfcbooks.com/tesla/1892-02-03.htmQuestions:What can one use for the carbon button?Could one use a modern, hollowed-out light bulb for this? (I would think there would be some problems with sealing the globe, and with the stem.)Edit: I recently found the third picture in Tesla's Colorado Springs notes and his "apparatus for the utilization of radiant energy" patent. It must be the single-electrode x ray tube I was talking about before...
Topic by ElectricUmbrella | last reply
Hello , am trying to get a hold of some copper carbonate but its much too expensive. now i have some raw, and untarnished (beyond normal anyways) copper laying around and want to know if theres any way i can convert this into pure copper carbonate, with minimal impurities such as copper oxides and such. is there a way to do this through electrolysis perhaps? also, is there a way to convert copper and copper oxide to copper hydroxide which i can simply add carbonic acid to to copper carbonate? also whoever answers my question will get a best anser form me , guaranteed
Question by oldmanbeefjerky | last reply
I have 2 random and somewhat contradicting questions: Can oxygen cause carbonation in liquid? Does oxygen decrease carbonation in liquids that are already carbonated? (soda) The more details, the better :)
Question by tb24 | last reply
"Recently, Royal Dutch Shell PLC received $865 million from the Canadian government for a carbon capture and storage (CCS) project. Green roofs, rooftops with plants, can capture and store carbon, according to a new study by Michigan State University in East Lansing. The technology to build green roofs already exists, and they can be created for much cheaper than a CCS project."The key to fighting global warming is capturing carbon from the atmosphere and storing it in new reservoirs that weren't storing carbon before," lead researcher Kristin Getter said...."This looked like a rather elegant answer to the Green Question.
Topic by Goodhart | last reply
Hi, I'm into knifemaking. There are some carbon fiber knives on the market, but they all have very poor edge retention. (because the edge is made of carbon fiber as well) I was wondering if it would be possible to add a thick metal coating of a hard metal to a carbon structural center, as to coat the blade in a thin layer of metal. This metal would then be serving as the cutting edge, hopefully with better edge retention. Is this at all possible? What types of metal could be used? Thanks in advance!
Question by jelte1234 | last reply
I wish to construct a pair of 70cm long carbon fibre rotor blade for my rc helicopter. The inner part of the blade is hollow to reduce weight. I understand that I need to make a two-piece mould out from a sample blade, with some kind of rasin. Any idea or suggestion is very much wellcome. Thanks to all for sharing.
Question by choonsiong08 | last reply
Hi,my bike orbea orca aero.A piece of stone sprang to the back. The paint was removed. (a small piece)Broken, puncture etc. there is no problem. It's just a paint problem.Color: Pantone bright red C (It is not matte color but glossy.)First version was white in color. I found it from the original color of the bike and painted it inside, but the pit was not filled and roughness remained.problem picture: https://ibb.co/KxQHyZ2In Turkey, no one knows anything about carbon fiber surfaces.I need help. At least which filler is used for the carbon surface, etc.1. Polyester paste 2. Fiber paste 3. Epoxy paste.It is necessary to fill and paint with these pastes. But these substances damage carbon fiber, and I don't know if these substances stick to carbon fiber.I don't know what to do, should I take it to the car body workshop. That's why I'm afraid to go to car body repairers. Maybe they can make it worse.My last resort is to put a sticker on it.Thanks.
Question by TanerJames | last reply
So there are a lot of carbonators out there, and they all cost in the range of $50-$100, which is a lot, but the real cost comes form the co2 cartridges. So I was wondering.... why not just use compressed air? sure, it would take longer for all the co2 in the compressed air to reach equilibrium between the water and the air, but i do believe that if you let it sit for long enough, it would work. other gasses would also diffuse into the water, like oxygen, but since gasses are hard to taste, it shouldn't make a big difference. (co2 actually forms carboxylic acid, which tastes sour, but i can live with it not being exactly the right taste) all i have to test this theory is 115 psi from an air compressor... would this be enough?
Question by biolethal | last reply
Hi, After cutting my own wooden lacrosse shaft using the tutorial on Instructables, it snapped within half an hour of use. Now I know this was because the grain was pretty poor and it was not a strong wood, but someone suggested that I wrap a shaft in carbon fiber so that it is slightly stronger, limits horizontal movement and reduces denting. I just have a few questions about trying this; Would this carbon fiber be appropriate for the project. http://compositeenvisions.com/raw-fabric-cloth-2/carbon-fiber-97/carbon-fiber-fabric-plain-weave-3k-5-7oz-tape-605.html if not where should I look? The biggest problem I see is somehow packing the carbon tight around the shaft so there are no bubbles and it is consistently straight all the way down the shaft, there is a vacuum packing basics tutorial on instructables but I'm not sure if you could use that for a lacrosse shaft. Instead of making my own bag as per tutorial would just a plain bag (http://compositeenvisions.com/vacuum-infusion-equipment-71/nylon-vacuum-bagging-film-500.html) be fine then clamp off the unneeded extra, although are those bags re usable? Because I don't want to have to pay $5 USD every time I would like to wrap something. I saw something called bleeder cloth as well, would this be needed to stop excess resin sticking to the shaft? When it comes to the carbon, I know someone who sails a lot and has some experience with carbon fiber but none with vacuum packing who said I should lay it up like the image attached to decrease horizontal movement while allowing vertical flex. Would this have the desired affect as if this is successful I plan to make a ton more for a high school team I help coach. I've attached a image to give you some idea of what I'm talking about. Then for the actual laying of the carbon itself, a shaft is not a flat surface so you can't just pour it on like the Youtube video's I've found. I'm not sure how to pull this off. Then afterwards, is there a simple way to test the properties of the shaft; specifically flex and impact strength. Because even if I don't end up wrapping the shafts I still need to test the wood to compare it to alloy. Sorry about the small essay, but I would really like to give this a good shot. Because shipping shafts from the states is quite expensive, being able to make my own and then put graphics on them would be amazing.
Topic by Thatkiwiguy | last reply
Gore and Branson have teamed up to sponsor an X-prize-like competition for capturing carbon dioxide. I love these types of competitions. Is anyone here on Instructables in a position to enter? With a bit of industry-sponsorship, this would make for a series of fantastic Ph.D projects. From: http://www.nature.com/news/2007/070205/full/070205-16.htmlA multi-million dollar prize is on offer to anyone who can invent a device that will remove significant amounts of carbon dioxide from the atmosphere. As one of the largest science prizes on offer, it is likely to attract huge interest globally in a bid to combat climate change.The initiative was launched today by British billionaire entrepreneur Richard Branson and former US Vice-President Al Gore in London.The US$25 million "Virgin Earth Challenge" Prize can be claimed for any invention that will remove "significant" amounts of carbon dioxide from the atmosphere - perhaps in the order of a billion tonnes a year. Current global emissions are more than 7 billion tonnes per year."The winner must be able to demonstrate a commercially viable design which will result in the net removal of anthropogenic, atmospheric, greenhouse gases each year for at least ten years without countervailing harmful effects," state the written rules of the competition. It must "contribute materially to the stability of the Earth's climate".The winning entry could be anything from manufacturing bacteria to install in industrial emissions pipes, to creating a system that buries CO2 underground, or even inventing artificial trees to breathe in the gas from the air.
Topic by ewilhelm | last reply
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).
Topic by Ttrick | last reply
I want to start making my own soda and I can get my hands on a CO2 tank. I've seen how to do it, but it involves carbonating each 2L bottle separately. I was thinking of filling some sort of tank up with the soda and carbonating that. What would I need in order to set something like that up, and how should I got about doing it?
Question by Hadokendude | last reply
Hey, i was wondering if there was any cheap method of making carbon paper or carbon felt at home for use as electrodes.
Question by LiquidLightning | last reply
I am going to make some matches that burn different coloures to make some money at school, and my attempt to make copper carbonate by electrolosis has failed, as it turns out only copper exposed to air during electrolsis carbonated. anyway, i need to know what will make the strongest colour flame on a match stick (probably barbeque matches not normal small ones), so that it is allmost entirely either green, purple or blue. right now i have a 1kg copper rod i found on the roud which i can use to make copper chloride, as i can get that easily, but i have heard that it lets off toxic fume so i am not sure, plus i dont know if the matches will burn hot enoguh to make the copper chloride go green.
Question by oldmanbeefjerky | last reply
I'm sort of confused about carbon neutrality and it's impact on our environment. I feel like I'm over thinking it, but could someone explain to me what exactly makes a carbon neutral fuel clean? If it's clean burning at all? I'm interested in making biofuels specifically algae fuel, and this is a term that keeps popping up.
Question by thecoonskin | last reply
VICTORIA -- Driving and other fuel-dependent activities are about to get more expensive as British Columbia becomes the first jurisdiction in North America to introduce a consumer-based carbon tax.The carbon tax will apply to virtually all fossil fuels, including gasoline, diesel, natural gas, coal, propane, and home heating fuel. B.C.'s carbon tax, the provincial government claims, will be the most comprehensive in the world.full article
Topic by ewilhelm | last reply
Hello, I have recently bought a camping heater however i'm now unsure if i can use it. i bought it for my garden shed, i work in there building and fixing things. it gets cold in there some nights and i just use the heater for 30 mins or so. I installed a carbon monoxide alarm thought it was safe but im not so sure now.
Question by Daniel Deacon | last reply
The New York Times has a really nice graph showing the world's historical and projected carbon emissions here at A Carbon Tide: Past, Present and Future Global emissions of carbon dioxide, measured by the weight of carbon it contains.Their choice to display it in flash rather than a similarly-sized image is somewhat annoying, but the chart itself does a nice job presenting a type of data that is often difficult to comprehend. Getting people to truly grasp the size and scale of some of the world's energy issues is one of the key challenges in making progress on those issues. In 2004, 7.9 billion metric tons of carbon were released -- did you make good use of your metric ton?Here's a thought experiment in that same vein: The San Francisco oil spill was originally reported as a 140 gallon spill, but turned out to be approximately 58,000 gallons. How much worse is a 58,000 gallon spill compared to a 140 gallon spill?
Topic by ewilhelm | last reply
Not 100% sure how the rider fell (all sorts of stories), but when he did crash - this is the result. CF tubes broken in two places and 1 broken collar bone (a not too uncommon injury on bigger accidents). Just thought someone might be interested :)
Topic by trebuchet03 | last reply
First off, I'm not entirely where to post this nor if it has been posted elsewhere (i did do a quick check but i didn't spend too much time on that endeavor). So if this is not the correct/best place to post this i will move it and if it is elsewhere then i will delete it. This topic starts with a question from something I just recently did. I got a high carbon steel marking knife (its a Hock tool) and when i got it, it was bent and i heated it up to a nice red color, let it cool, tried bending it, and broke the tip off so i sharpened it back to a point and heated it up until it was no longer magnetic and heated it at 450F for about an hour. After doing this and checking some charts I was expecting a golden/brown color but instead got a blue color throughout most of it. So do i need to redo this or is it harder than i would expect from a blue colored steel? So I'm sure there are plenty of resources out there for figuring all this out but i was hoping this could be a centralized area for anyone to get all the information they need on this topic. what are some tips/tricks on annealing/heat treating/tempering iron, steel, and high carbon steels? is there a difference between the three (annealing, heat treating, and temper)? what is the difference (if there is one)? what should someone expect from doing something like this? what would each color be useful for (which would be best for a drill bit or which would be best for woodworking tools etc.)? any tricks of the trade? any personal tricks that you wont find anywhere else? anything else to add? ANYTHING that is relevant would be helpful, im sure there are many people that could benefit from a list of tips from those who actually do these things. if i remember to do so i will post this blue marking knife that i'm talking about.
Topic by pmk222 | last reply
Seaking to use carbon fiber felt to blanket/insulate against process heat loss to enviroment. can work with single pieces as small as 3 inches by 12 inches, aprox. thickness 3/8ths inch --HOPEING FOR cheap!
Question by big al 1048
The kind of Tank Im talking about is a Paintball air system. Are they refillable?
Question by Paintballer98 | last reply
With the whole economic kerfuffle going on you would've thought that there would be less carbon going up into the air. New studies show that emissions continue to ride, however. The data is collected and analyzed by scientists from the Norwegian Polar Institute and Stockholm University. Researchers found that during the first two weeks of March, the concentration of carbon dioxide in the atmosphere rose to 393.71 parts per million (ppm), up from 393.17 ppm during the same period last year. John Stroem, a scientist with the Norwegian Polar Institute, told Reuters that looking back at data gathered since the 1980s, the increase in carbon concentration levels seems to be accelerating. Carbon Emissions at All-Time High Despite Economic Slowdown
Topic by fungus amungus | last reply
I want to use an old 50's telephone handset with my computer for making phone calls with gmail. I know the receiver/speaker will work, but will the carbon microphone work if connected directly? I seem to have come across a few things stating that it will work if connected directly and others that say that a battery or resistor or both is needed. Thanks for any info.
Question by sctirvn687 | last reply
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Question by vengi | last reply
Hello everyone, I am trying to help a friend who is searching for graphite tubes, exact measurements are negotiable but he's looking for 5/16" x 72-84". I've searched all the slightly off the beaten path places I could think of, including kite making supplies, fishing rod building supplies and so forth... is this going to have to be custom made? Thanks!
Topic by Grundal | last reply
I have been reading about the subject, and most articles tell that carbon filters are good for solder chemicals, fumes and odors, while HEPA filter are designed to remove dust, allergens and micro-organisms from the air. Supposedly, solder fume extractors should use both filters for an efficient filtering of the chemicals. Is this correct? Thanks for your time! Source: https://www.google.com.ar/url?sa=t&rct;=j&q;=&esrc;=s&source;=web&cd;=4&cad;=rja&uact;=8&ved;=0ahUKEwiWkOu6v8nPAhUIPJAKHXhDCgEQFgg1MAM&url;=http%3A%2F%2Fwww.solderconnection.com%2Fspecsheets%2FLead-Free_Solder_Fumes_Increase_Need_for_Fume_Extraction.pdf&usg;=AFQjCNHqetU2dZG3hSaRNmPIl1LhUObshw (The link redirects to a PDF file!)
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Question by PKTraceur | last reply
Carbonated Fruit Water Bottle Launcher Homemade Sunscreen Garage Climbing Wall Bicycle Smoothie Maker Sign Chair Fix a Broken Surfboard Floating Dock Kombucha Recipes Easy Summer Salad Catch Fruit Flies Freehand Glass Etching Pinhole Cameras $40 USB Telescope Jar of Fireflies
Topic by randofo
I'm going to build a forge, and thusly need a scource of steel to work. Rebar would be great, but I don't know what it's made of. Is it steel? If it is, is it a high carbon steel?
Question by Fado Korok | last reply