With Instructables you can share what you make with the world and tap into an ever-growing community of creative experts.
share step-by-step photos with text instructions
share one or more photos in one step quickly and easily
share your how-to video
Best Answers: 5
PDF DownloadsAs a Pro member, you will gain access to download any Instructable in the PDF format. You also have the ability to customize your PDF download.
(forgot username/password?)
Comment: For longest run times use the best AA battery you can buy. I found the 2650 Mah NiMH re…
Comment: The laser will be detected no matter what range. The problem is the gain has to be turn…
Comment: Hi Mike, The variable cap will likely be ok wiring as you describe. The ferrite antenn…
Comment: Glad to hear you are getting some results. That is the hum you are looking for, and the…
Comment: Really "cool" Stirling Engine you made. I didn't think they could run on straight sunl…
Comment: Hi Bill, and thanks for the comments! I see that you list engineer on your profile...wa…
Comment: Ok, what you likely need is lots more gain (assuming the radio is wired correctly and t…
Comment: "Run it direct with an antenna connection" means when the induction coil does not have…
Comment: The radio does and can act as a microphone, among many other things. I have done a movi…
Comment: The AA113 germanium diode is similar in function t the 1N34a, and may work in this appl…
Comment: Cool! It looks really nice. Can you get it to talk, that is the question! hehe The De…
Comment: Some of the parts from an analog AM radio may work, including the antenna coil, a varia…
Comment: Been there with contest votes, and know they are hard to extract from folks!You got my …
Comment: well done ! ...One of the Great Instructables! Well documented and good photos. It's …
Comment: Those 1/2 inch cube magnets will work for most cases. At a strength of N35, they are so…
Comment: Those magnets are about 3/8 inch in diameter, and are quite a bit less powerful than th…
Comment: The coil should have the micro-henrys indicated in the literature. Use the pair of wire…
Comment: Thanks for the question! The main problem is that you can only get so much power out o…
Comment: Now that is the definition of "cool"... 5 stars everyone!
Comment: I like your "cute" motor creation as well...nice work!
Comment: I recognize your point, but note that 3/4 of the planet is water, and in the northwest,…
Comment: Nikoila Tesla, in his Radiant Energy patent,( U.S. Patent 0685957 - Apparatus for the U…
Comment: This circuit already converts radio waves and/or light waves, laser light, and/or sound…
Comment: Yes. The limitations are more that the magnetic drive can only take so much torque, and…
Comment: It has a sharp carbide blade that is meant for wood...and pumpkins! However, if the met…
Comment: Although I have demonstrated the use of the Spooky Tesla Spirit Radio as a microphone,h…
Comment: Ok, for some reason those patch files did not stick. Instead, you can select Go/iDisk/ …
Comment: You are on the right track by being able to receive stations.There are two things that …
Comment: The TESNIC wind turbine uses Tesla disc technology. Have a look.
Comment: Ok, so how is it we can hate and love something at the same time??There's a bigger ques…
Comment: It's interesting that something we consider disgusting can be so much fun and even edible!
Comment: Yes, this can be done. I have recently made such a generator that can light 50 LED's fo…
Comment: You can hear lightning in an AM radio, if that is what you want. Hook up the radio to y…
Comment: Without the computer, if you are able to hear it at all, you will get static sounds and…
Comment: The signal from the circuit is very weak and will not drive a set of regular earbuds. Y…
Comment: Try the following and let me know if it works. If not, just search E-bay for "crystal r…
Comment: Newer Canadian pennies are either composed of 94% steel, clad with 4.5% copper and 1.5%…
Comment: This cool idea will also work fine with most Canadian coins. About 1/3 of Canadian penn…
Comment: The wire you have should work ok. I stripped my household wire of its plastic coating.
Comment: The two wires go through the two holes first, then the plates are bolted together. Two…
Comment: Here are some pics of the pancake antenna/coil winder form I made:
Comment: I'm glad to hear you are learning about the Tesla turbine...there are good reasons why …
Comment: I hand-wound the first pancake antenna without a form...but it was not easy or perfect.…
Comment: The prices for neodymium magnets have increased a lot recently.
Comment: Thanks! It is humbling to have an older instructable come back to life on the main page…
Comment: A water balloon nozzle will likely be too big. The CD Turbine nozzle inside diameter sh…
Comment: Vortexes are beautiful, no doubt about it!Put in some spaced CD's, and you have a Tesla…
Comment: You could use this idea for an entire pool...but it would require about 40 horsepower t…
Comment: I'm not sure how to "properly" wire the football coil either!There seems to be three ba…
Comment: it helps to be a bit crazy to build one of these. And if you weren't before, you probab…
Comment: The software I used for Spooky is "Audio Hijack Pro" for Mac computers: http://xhttp://…
Comment: Haha, too funny!
Comment: There is a company that has recently patented a similar idea! Check out the Tesnic wind…
Comment: Thanks much for the positive feedback! May you continue to ponder the mysteries of the…
Comment: It can take a while to get the "hang" of the Tesla Turbine. It seems too simple to work…
Comment: Ok, now that safety is covered, I'm happy to answer any other questions you may have on…
Comment: The polycarbonate CD discs are a weak point for a high-speed Tesla Turbine. (and Tesla …
Comment: There is no safe psi. You have to build a protective cover or barricade, with the assum…
Comment: You can use steel washers, or flat neodymium magnets to replace the Canadian coins. It'…
Comment: Apparently, some peoples teeth do the same thing!
Comment: "Whistlers" result from lightning travelling along the Earth's magnetic field lines. I'…
Comment: Thanks for the offer! I would be happy and grateful if you would do a translation!-Rick
Comment: An extension cord wire won't retain the heart form too well because it has multiple str…
Comment: PC users can download a SpookyRadio preset for AudioMulch here: https://public.me.com…
Comment: I have made a preset for AudioMulch called "SpookyRadio1". It's available at my iDisk h…
Comment: Folks with a PC computer can use the sound program AudioMulch to amp the sound signal f…
Comment: If you listen to the radio in real-time with audio software, it will be easy to hear if…
Comment: Definitely. "Spooky" loves to work with quantum physics...Spooky action at a distance i…
Comment: Any problems can be solved through communication ;)Have an enjoyable learning experience!
Comment: The "Orbit Watermaster" is simply a tapered plastic nozzle that goes on a pipe. It's us…
Comment: The inlet nozzle is one of the most critical items of the Tesla Turbine. This is becaus…
Comment: Folks can try a 60-day free trial of Audio Mulch at http://www.audiomulch.com/download.…
Comment: I have just tried a Mac and PC program called Audio Mulch and it will work fine for the…
Comment: It will work as a normal crystal radio, but to get the "spooky" effects, you need a rea…
Comment: I don't yet have the tutorial in Spanish. However, I would be happy to help you to unde…
Comment: Besides the ferrite, sometimes there is a tiny magnet wound into the coil.If you don't …
Comment: A dc power source will work. It will require up to 5 amps at a couple of volts.
Comment: Yes, the Tesla fan or pump is based on the same idea of adhesion of the fluid to the di…
Comment: The Tesla Fan should be quiet and push lots of air. The air will come out of the hole i…
Comment: Did you know there was a Tesla Fan? You could attach one to a Tesla turbine! Here is a …
Comment: Yep, I've done that! Tesla Tornado Tube is an example of a magnetically coupled Tesla …
Comment: Here's a couple of Tesla Turbine instructables using hard-drives for discs: http://w…
Comment: There are a couple of ways to glue the magnets on. I generally use a good quality grade…
Comment: Be careful...The Tesla Turbine is a deceptively simple device that will give a lifetime…
Comment: The Tesla turbine has a flat torque curve compared to an auto engine that generally has…
Comment: The automotive alternator takes all the turbine power available just to get it moving. …
Comment: Yes, that should work, and produce more torque and rpm as well.
Comment: Thanks for the warning! "Gently" dimple the battery positive terminal is definitely the…
Comment: Thanks for the helpful hints on wire bending!
Comment: The battery will last for up to an hour with the "flat heart", and as little as a coupl…
Comment: Thanks for the comment on neodymium. It's interesting to note that the nickel plating i…
Comment: Good idea! I didn't think that would work! Have a look at this movie that shows wire-f…
Comment: Try an experiment with loading up the battery with as many stacked 13/16" magnets as it…
Comment: This experiment is tough to do. That 13/16" magnet won't work. I just tried a 3/4" x 1/…
Comment: The coins are magnetic Canadian coins. They are not necessary, except as a means of alt…
Comment: Hi R,Thanks for your interest in the Tesla CD Turbine. It's really a worthwhile project…
Comment: I use a laser rpm meter, and stick a piece of reflective tape on the disc surface to re…
Comment: Although not necessary, there are several reasons for using magnets as separators: 1. E…
Comment: That idea could certainly work. I did try a regular light bulb and was able to get it t…
Comment: Good question!The answer depends partly on what purpose you have in mind for the Tesla …
Comment: Congrats on making this project!Welcome to the sensitivities of the crystal radio set..…
Comment: Hahaha, I had the same thoughts myself! The Tesla Tornado would make a great fish exer…
Comment: I hooked up an automotive alternator to the Tesla CD Turbine, but it took all of the po…
Comment: Fluorescent is a good suggestion...I'll try that at Christmas this year!
Comment: Hi Carlos,Glad you like the project. It has much to offer an experimenter.Generally, AM…
Comment: The tuning knob is an adjustable capacitor that usually changes the resonant frequency …
Comment: I use the Mac and Audio Hijack Pro because it works. There must be a PC alternative set…
Comment: The Spinning Ghost is simply a homopolar motor with a tissue set on top. A homopolar mo…
Comment: I believe that will only work with more water pressure to the turbine.
Comment: If the magnets are closer to the hub, it seems like it would provide for higher rpms. T…
Comment: I have a goal to build such a turbine in the near future. Ceramic nanocarbon discs are …
Comment: Thanks for the instructive comment!As a mechanic, I've been around alternators for 40 y…
Comment: Thanks for telling us about your interesting Tesla Turbine experiences. There's lots mo…
Comment: You can use a bread board instead. The middle connection of the variable capacitor is…
Comment: Yes, that can work. It is dependant on the pressure and total flow of fluid. With lower…
Comment: That's right...a pipe will give about .5 psi pressure for each foot of vertical elevati…
Comment: A turbine uses the water pressure inside the turbine, so there is not a lot of pressure…
Comment: To set up the alternator I simply attached a magnetic coupler to the alternator shaft, …
Comment: I'm sorry to hear that, and I'm working on it.
Comment: The supplies can be bought from http://www.comtrolauto.com who do ship to Canada. They …
Comment: Ok, let's communicate by e-mail, as this is the Instructables comments section. My e-ma…
Comment: Hi Dennis, Glad you enjoyed the Spooky Tesla Spirit Radio. I think in a sense it can r…
Comment: For cutting polycarbonate, you can use a regular carbide-tipped skil-saw blade, or hire…
Comment: Cool Instructable! I'd suggest a polycarbonate (Lexan) shell instead of acrylic...a li…
Comment: Some small amplifiers will produce sound, but the sounds will be mostly static, humming…
Comment: Your program will not have the same settings as Audio Hijack Pro, the program I used. …
Comment: Your program will not have the same settings as Audio Hijack Pro, the program I used. …
Comment: The cream separators range from 1400 rpm to 8000 rpm depending on model. The Tesla Turb…
Comment: That's absolutely correct. Tesla considered his transmitters to be only 10% Hertzian w…
Comment: Tell me more about your project turbine. Did you add discs to the turbo shaft? Lots…
Comment: The magnets don't make it spin faster or add torque. They add to the inertia of the spi…
Comment: Yes, that will work. An iron core will make the output stronger. Alternating the magnet…
Comment: It will work, but you will need holes near the centre for exhaust, and a case that fit…
Comment: Most excellent Instructable! Makes me want to get an iPad just to try it!
Comment: I don't understand. Can you ask your question in another way?
Comment: If you use steam with a CD Turbine, the demo will only last about .35 second before se…
Comment: Good idea, I will have to try it one day...or perhaps you should? hehe
Comment: Interesting concept...A fixed power but variable speed motor with a cone-shaped commut…
Comment: The recent update to Audio Hijack completely changed the AU Pitch control. You will j…
Comment: You got it right on both accounts. It seems that the negative of the computer phone j…
Comment: There is only 6 hours left to vote in the annual Instructables Valentine's Contest! P…
Comment: A normal metal lid will conduct electricity. It could possibly be used as a common gro…
Comment: There might be a pitch oscillator circuit available. I use software; it's easier and w…
Comment: I use Audio Hijack Pro for the Mac. There is a free evaluation copy available that runs…
Comment: The hertz produced in the output of the radio ranges from a few cycles per second to a…
Comment: Generally, airplanes use higher frequencies than AM radio, which this radio is primar…
Comment: Exactly correct! The flat heart motor is self-governing, uses minimal power, and it can…
Comment: Yes, that sounds reasonable. Add to that the idea of inertia of the ball, which preven…
Comment: Good question. I don't know.
Comment: The magnetic field is stronger when closer to the magnet. And the radius is smaller,…
Comment: The magnet may need to be stronger. The coins work best if they are magnetic like Ca…
Comment: 5th is about 500 rpm.
Comment: The diode is directional. If you direct the light toward one end of the diode, you get …
Comment: That is it exactly! Keep in mind that the diode will only respond to the light from …
Comment: The 1N34A diode would likely respond to the infrared, if it was directed at just the ri…
Comment: People have made Tesla Turbines out of paper. The paper discs should be stiffened by …
Comment: Both are good suggestions. I tried little duckies that were fridge magnets, but they g…
Comment: Hehe, I did! But the ducks were fridge magnets, and got caught in the magnets of the T…
Comment: In order to pick up disturbances like you wish, it may require a special type of antenn…
Comment: That's what I did...it's a simple crystal kit, and any antenna can be used. The longer…
Comment: If it has to function, then hook it up to a Mac and use Audio Hijack Pro to make sounds…
Comment: Sure, you can do that. Go for it! However, to get proper signal and be able to hear …
Comment: Yes, the variable capacitor is used to tune in AM stations. A powered speaker can be …
Comment: What do you think I should use as a movie app?
Comment: That variable capacitor should work fine. It is within the recommended range.
Comment: The shifter gets moved from coin to coin. Although the various coins have different re…
Comment: Thanks, mr robot... Video is now up, and more to come!
Comment: The metal lid can be used as a common ground or perhaps as a common antenna +. Either …
Comment: Yes, the red wire with alligator clip attached to the antenna of the radio, goes to a …
Comment: Congrats on your build! I find a mono audio cable works way better than a stereo cable…
Comment: The 1N60 "black diode" can substitute and will be more sensitive to AM range stations,…
Comment: One of the results of this Instructable, was the making of a PC game called "Tesla". T…
Comment: Not a distraction at all; the link you provided was right on topic as far as I'm concer…
Comment: Fun sounds to listen to...and thanks for posting. It's interesting to note the backgrou…
Comment: You are correct that audio software is required for best effect. I have heard that Pro…
Comment: I would try the radio as is, and see if it works ok for your purposes with just the co…
Comment: I was referring to an external linear 22' antenna. I string mine across the living roo…
Comment: A very enjoyable Instructable... (Your brain must have been so busy with detail work!) …
Comment: You can measure capacitance and inductance by a number of methods; the easiest is with…
Comment: If you have a Mac, the software to use is Audio Hijack Pro. It's available as a free do…
Comment: In order to get the sounds that I did, you need to run software that can amplify and c…
Comment: Good to hear you wish to become an electrical engineer! The basic crystal radio parts …
Comment: Ok, good at least you have hum. There should also be a faint audible hum when not touc…
Comment: The coax won't work as an antenna because it is designed to prevent radio signals from…
Comment: The ear bud only works if it is the high-impedence crystal radio type, and the radio ha…
Comment: I am planning on doing that sonetime soon. Do you have a particular design in mind?
Comment: The antennas don't make that much difference for those effects. I found the Football c…
Comment: Thanks for the link. Also, complete crystal radio kits from ComtrolAuto start at $7.45
Comment: In some radios, longer hook-up wire will make a difference, but for practical purposes…
Comment: Thanks for the great comments. I believe you are right about the resistor that it can b…
Comment: Thanks for the clear description of a "proper" Tesla circuit. Perhaps it would be a go…
Comment: The way I understand it, the crystal radio circuit is already a resonating LC circuit.…
Comment: In order to properly tune an AM station, the antenna size/length must be matched with …
Comment: Tesla usually refers to his radio as his Magnifying Transmitter or World Power system. …
Comment: Cool! Looking forward to your results. Thanks for the vote support, too!
Comment: The AM circuit serves as a general LC (Inductor-Capacitor) resonating circuit that pick…
Comment: Our brains work with low frequency waves that definitely can be sensed with electrodes…
Comment: You are not off-track at all with this idea! I feel like I'm on the deck of the Enterp…
Comment: It does seem at times like a "Cone Of Silence" (from TV series Get Smart;) fills the ai…
Comment: The diode was available to Tesla in the later part of his life, but I doubt he would h…
Comment: A plastic or wooden enclosure will work fine. The metal rim has little effect normally…
Comment: Congrats on a sucessful build! The .001uf cap is the correct value. Thanks for noticin…
Comment: That should work! There are plug-ins like this VST "PitchWheel" one that can alter pit…
Comment: Sorry, Audacity won't work, as it has no real-time effects abilities.
Comment: Hehe, I think Tesla smiles every time he hears his name these days...
Comment: The amp will likely work raise gain enough to hear radio stations, and be useful for s…
Comment: There is more in front of our faces than we are led to believe. Check out EJ Gold's b…
Comment: Hehe, glad to hear you are going at it! Do you have a Mac or PC?
Comment: Nope, it isn't obvious! I've added the part number to the parts list for the ferrite l…
Comment: Congratulations and let us know how it goes!
Comment: This coil antenna uses over 6 feet (2 metres) of copper wire. A good length for a crys…
Comment: Hi Stephen I seem to be getting into the business of making these! (just got my first …
Comment: Yes! All of the sounds in the videos are generated in real-time by the Spooky Tesla Sp…
Comment: They likely used something a lot more sophisticated, and with multiple recordings and …
Comment: I suspect the plastic washers would get in the way more than help, because of the wire…
Comment: It might work, but most radios have chokes and bypass circuits so that higher and lower…
Comment: I use an iMac as the interface for the Spooky Tesla Spirit Radio. I plug the radio righ…
Comment: Like you say, the football coil has four wires...the two main supports of one 8 gage co…
Comment: Oh sure, the vortex can be touched. You can add things like glitter or objects. What's …
Comment: Thanks for the positive comment...What an honour to restore a Tesla turbine!
Comment: Well it's about time someone noticed! Hehe Yes, that is correct. I adapted a magnetic …
Comment: Glad to hear I was of some inspiration! Yes, the beauty is in the simplicity. The vehi…
Comment: Good idea. I've considered that one, but I don't have a good source of what you call "d…
Comment: You can use any pipe or tube that comes down to about a 1/16 inch nozzle outlet size. …
Comment: Thanks for the complimentary comment! The Hearts homopolar motors are a great entry po…
Comment: Use the washers around the edges...it will work better except at very high rpm ( say ab…
Comment: Ok, first, using washers won't stop the water getting to the middle. Just don't over-do…
Comment: In theory, the boundary layer idea is great, and it is the basis for the Tesla design. …
Comment: Ok, thanks for the picture. I think you have a couple of issues. 1.) The pump is smal…
Comment: Do you have magnets or washers between the discs? What nozzle are you using?
Comment: Hey Wehrdo, I'm glad you are trying the Tesla CD Turbine project and I will help. It s…
Comment: It will make an excellent project! I'd recommend the recirculating CD Turbine found in …
Comment: Hey, thanks! Nice link...Pye's sculptures are beautiful.
Comment: Sure, I can help! Are you using a neodymium magnet, preferably at least 1/2 inch x 1/2…
Comment: Too many questions, grasshoopper! hehe You need to get yourself a magnet or two and get…
Comment: To convert the spin of a Tesla Turbine to power requires rotating magnetic fields of so…
Comment: The chart is really good, but it took me several visits ti wiki to even start to "get' …
Comment: Google "naval homopolar" and see http://www.ga.com/atg/EMS/homopolar.phpThe navy makes …
Comment: The homopolar motor is a high current, low-voltage motor. It may draw several amps at t…
Comment: The heart-shape homopolar motor will usually go for about 3-5 minutes, sometimes up to …
Comment: Generally you will not find Tesla Turbines used for solar power, although they are a ch…
Comment: On a good day with a low-friction CD turbine, I can blow into it and get 500 rpm. That'…
Comment: That's an interesting question. A greater viscosity or density will make a difference t…
Comment: interesting technique! I suppose that will work as long as there is also enough glue s…
Comment: That's very innovative! Also you can get neo magnets from the shake-type flashlights …
Comment: My Tesla CD Turbines will run on any source of pressure that doesn't melt the hot-glue.…
Comment: Yes, there are a couple of Hard-Drive Tesla Turbine Instructables. Perhaps the magnets …
Comment: Hehe, that's the Tesla spirit! I wonder if a Tesla Turbine blender can blend a Blend-…
Comment: Absolutely! It would work similar to a vacuum cleaner, with suction at inlet and press…
Comment: The heart shape is the simplest to make and balance. You can also make a shape as shown…
Comment: You would need to build the basic SinkScience turbine and magnetic coupler found here. …
Comment: I like seat-of-the-pants trial and error as an experimental basis better than facts and…
Comment: It has been my dream to do so! However, it requires lots of compressed air to run a ca…
Comment: I hook up everything through a magnetic coupling. Six neodymium magnets in the turbine…
Comment: Adding more discs (the Tesla design is called a blade-less turbine) will not necessaril…
Comment: Yes, the CD Turbine can generate power in many ways. Here are some ways I have found...…
Comment: Hehe, I've created a monster...with a life of it's own at this point!
Comment: The Tesla CD Turbine is fine on water pressure...the CD's won't rotate fast enough to d…
Comment: The magnets have several functions. The smaller 1/32 inch thick magnets are used as spa…
Comment: The videos work fine for me now. What computer and browser do you use?
Comment: It's true that energy scavenging will become a popular pastime in the future. I'd love …
Comment: Hehe, the Rock Soup story was good... The final ending is that everyone in town donates…
Comment: What schools and other institutions need is a new invention I call the "Vortex Plasma G…
Comment: Yes, this is completely possible! Except, when you crunch the numbers, it doesn't make …
Comment: You likely need compressed air from a compressor to run your turbine paint sprayer. Th…
Comment: Good advice; thanks for the comment! It's true that the Tesla design relies on a diff…
Comment: Hi JBz,Thanks for the great comments! Tesla thought the earth put out rays, so he would…
Comment: Depends on the shipping costs...hehe!
Comment: There are likely cheaper magnets in China if you can order direct. It will be a lot of …
Comment: One model of the Tesla CD Turbine I built could rotate up to 500 rpm just by blowing in…
Comment: ...and never be sorry for asking questions! hehe
Comment: The gearing would depend on the speed of your wind turbine. Generally, a wind turbine m…
Comment: You can use almost any dc motor, but the considerations are friction and magnetic drag.…
Comment: That' why I highly recommend a protective safety enclosure! Folks should never be besi…
Comment: The N52 is the strongest neodymium magnet and as such works quite well but is more expe…
Comment: There are various ways to generate power with this Tesla CD Turbine. You will have to d…
Comment: My most expensive turbine required about $50 worth of magnets. It would be easy to buil…
Comment: The psi pressure won't increase much by using the tapered scoop. It will smooth the fl…
Comment: Here's a link to an instructable that uses hard-drive platters...http://www.instructabl…
Comment: Metal discs don't necessarily go that much faster, because they weigh more and therefor…
Comment: Good comment... I have recently become allergic to gasoline and oil, and consider them …
Comment: Yes and no...if you were to mount this in-line in the car exhaust, it would generate to…
Comment: Yup, and we wonder why the economy is in trouble, hehe!
Comment: It is possible to make a Tesla turbine without the "magnetic drive" that I use in my de…
Comment: You are correct as far as the basic way the Tesla Turbine works. The black thingy (some…
Comment: Yes, and my latest Instructable does just that...it has a recirculating bucket system w…
Comment: I was forced into it! Seriously! I developed severe allergies to my work as mechanic…
Comment: First of all, the Tesla turbine is a motor, not a pump. It uses high velocity fluid to …
Comment: Are you sweating yet? hehe Dimes will work better than pennies, because they are thinn…
Comment: There must be space between the discs; a cylinder won't work in the correct manner. In …
Comment: A normal CD cover will work for normal faucet water pressures, and is what I used for a…
Comment: Don't worry...I will answer all questions!
Comment: Perhaps we haven't progressed that far...automobile fires currently cause over 500 deat…
Comment: Tesla's turbines were mainly designed to be used with high temperature, high pressure s…
Comment: Yep, and a 1950 coin would have been around for only 5 years when I was born!
Comment: These Canadian coins are attracted to the magnet and act to modify the magnetic field, …
Comment: When I was a kid, they were a dime a dozen...
Comment: As a motor, it could be used to turn a homopolar generator that could light an LED...bu…
Comment: Yes, I've lit LED's with coils of wire above the magnets, but it really needs a N-S-N-S…
Comment: hmmmmmm.
Comment: Neat idea! The tesla turbine can achieve high pressures, but it requires high rpm and …
Comment: You can use the tip of the glue gun to pierce the CD case to mount the nozzle. Only the…
Comment: Haha, gotcha thinking, eh? Good! The magnetic coupler could conceivably be geared down…
Comment: Glad to see you are interested in the Tesla Turbine. The Tesla CD Turbine is a pressure…
Comment: Hi BuzzChild,I get the Holland Greenhouse Power Nozzle from a local hardware store; you…
Comment: Happy motoring!By the way, there are still a few hours left for folks to vote for my in…
Comment: That's it exactly. Then out to a pulley, and down to the bag of weight on the floor. …
Comment: The worst that can happen, you don't want to know about. (i.e. house burns down, etc.) …
Comment: Right on, orv_16! The shake flashlight magnet trick works good in a pinch. And you can …
Comment: That's true! Especially with 10 gage copper wire...very hard on the thumbs! 12 gage or …
Comment: Hey Plasmana! Love your instructables, too. I hope to incorporate a high-voltage water…
Comment: I can't do that right now, the CD turbine blew up and the magnetic coupler is joined to…
Comment: To me, this Tesla CD Turbine has been much more amazing and versatile than the compress…
Comment: No, you don't have to use magnets. Tesla certainly didn't and had outstanding success i…
Comment: Thanks...and a good instructable you have there, too!
Comment: Good suggestion. I wanted to have a full Tesla kitchen, but ran out of time and money.I…
Comment: I don't understand your negative comment. We normally use grid electricity from pollut…
Comment: Lilshawn, you said,"eco meaning economy and friendly meaning.... friendly. soooooo we a…
Comment: Since what does eco-friendly have to do with energy efficiency?? They are two different…
Comment: The repelling magnets forming a stable rotating coupling was the major discovery I had …
Comment: Ok, lets review. I think you used 4 magnets on the top disc, right? What size were th…
Comment: By eco-friendly I meant there was no power being consumed from the polluting power gri…
Comment: The toughest part is hot-gluing the nozzle to the case at the right angle. I'm still wo…
Comment: Good question! There are many expensive options for measuring torque, including wirele…
Comment: sorry, I'm not privy to the details. Something about no top-secret clearance. Oh well.I…
Comment: Computer hard drives have very reflective discs...if one had 100 or more of them, it wo…
Comment: We're working on the plans. Most of that info you will have to ask your secret governm…
Comment: Shhh, it's tip-top secret...Here is the link for "Tesla's Flying Machine" Google Group.…
Comment: Thanks for comment!I would like to build a parabolic solar heater for a closed-cycle Te…
Comment: All of Tesla's public patents have expired and are available for anyone's full use. The…
Comment: He would turn over in his grave if he could see the dirty mess the world is in now. Tes…
Comment: Thank-you to the folks who vote for this instructable in the Hungry Scientist contest b…
Comment: Thanks for the link... good info on the spiral river pump! Perhaps they wouldn't need t…
Comment: The Tesla Lawnmower will be powered by self-generated hydrogen and will be safe because…
Comment: That's it exactly. The air-powered version has very low low-speed torque. In fact, a…
Comment: Funny, I was just considering a Tesla turbine lawn mower, too. The armoured hose is a g…
Comment: Hahaha, you read my mind. I do hope to make my home self-sustaining eventually, and do …
Comment: You can get magnets on-line from K&J Magnetics. Just go to the K&J banner on my websit…
Comment: Congratulations! Glad to hear of your success! You don't need to totally seal the case…
Comment: The glued CD's are a problem. They need to have a small space between them for the flui…
Comment: You can build a basic turbine for about $10 or even less without magnets. It would be…
Comment: You can use a tall spindle and only a short 7-10 disc pack. If you mount the nozzle at …
Comment: cowscankill, have you drilled holes into the spindle post? lots of 1/8 inch size holes …
Comment: Haha, cheers, fellow canuck dude!
Comment: Yes, a fully charged AA battery is best. Preferably a NiMH rechargeable Duracell 2650 m…
Comment: There are two basic types of turbines...Impulse and Reaction. Tesla Turbines are primar…
Comment: That is a thin black see-through hood and a kind of a cotton smock with a belt, you mig…
Comment: Ya gotta upgrade to run with the fast crowd! hehe...have fun!
Comment: Speed costs...how fast do you want to go? (old hot-rod saying, hehe...) The speed of …
Comment: Yes, I have added coils of wire and have been able to light an led, for example. It cou…
Comment: Good idea...thanks! Now that I've looked up what they are, I'd love to be part of the L…
Comment: And, by the way, where exactly is YOUR photo?? hehe
Comment: Hey, on second thought, perhaps it is me who does require a new photo...after all that …
Comment: It was Halloween ...get over it.
Comment: You could generate power with this unit, but it would require about 20 psi to get a sma…
Comment: Haha, good comment. Yes, the Shake Flashlight Shaker has a satisfying 1-cylinder "thump…
Comment: Hey have fun...just play safe and read the warnings about adequate protection with the …
Comment: Ah, good...my plan to take over the planet with Tesla Technology is working!!
Comment: I certainly didn't mean to be misleading. There is no mention of a Tesla Coil in my mat…
Comment: The Tesla turbine has traditionally suffered from a lack of torque. Tesla recommended …
Comment: Well, it was Halloween, after all! The costume was my Bunraku puppetry costume general…
Comment: I guess this is a Canadian instructable...most Canadian coins are magnetic. Some pennie…
Comment: Man, you would show that RD350. 1973, I believe. I bought one new; rode it and loved it…
Comment: It's interesting to note that disc disintegration can sometimes occur in the Tesla Turb…
Comment: Here's a link to a Gadgetopia article that mentions the Mythbusters show doing a test o…
Comment: CD's usually explode at about 23,000-30,000 rpm. The low end estimate is for scratched,…
Comment: It's true these discs could make a great turbine. There are a number of home-made Tesla…
Comment: Try the Tesla CD Turbine videos at my Howcast site.and the following Howcast video. Let…
Comment: Are you in Turkey??
Comment: What broser and operating system? Are you logged in to Instructables when you click? I…
Comment: You must use neodymium magnets, which are magnetically strong and electrically conducti…
Comment: Thanks for the insightful comments! The ball-in-a-bowl stroboscope could yield some g…
Comment: The Tesla CD Turbine can make electric power in several ways. Using coils of wire as el…
Comment: I'm still going through that stage, hehe...For more fun with magnets, check out other i…
Comment: Hey, I'm glad you learned something from the other videos, that you could apply to the …
Comment: Hey Mr Twist. The bucket is a good idea. You will need a pump that will put out a min…
Comment: I was thinking more in the lines of HHO (electrolysis of water, H2O, into Hydrogen and …
Comment: Go to my CD Turbine website here and click on the K&J magnetics banner. They have a gr…
Comment: I've had occasional problems with viewing the instructables videos on my Mac using Safa…
Comment: Read the wikipedia description for tesla turbine for background info. Basically, t…
Comment: It works ok for me...could you try again?
Comment: Hey astrozombies138, that's terrific! Welcome to the small club of Tesla CD Turbine …
Comment: That should work for you. Good luck & let me know.
Comment: The magnets will stay on without glue if there are multiple layers of discs and the m…
Comment: Ok, if the opening is round and about 1/16 -1/8 inch that should work. A rectangular op…
Comment: All the water goes through the nozzle extension tube. The extension tube simply increas…
Comment: The above picture is for the magnetic coupler I used in the PumpkinCutter turbine. The …
Comment: Thanks for this idea of the pressurized barrel. I see that it could work. Another w…
Comment: Nice work! Tesla turbines are so much fun, and it's a pleasure to see new designs like …
Comment: So, therefore, since I have 3 tesla turbine instructables, then I demand 30/3 equals 1…
Comment: I can see your mind is working!The "hot air rising" idea wont generate enough pressure …
Comment: Meltdown! Although, with a little tinkering, you could disconnect the electric hea…
Comment: Sorry sajada, I'm a bit confused...are you trying the above "Hearts on fire" motor or t…
Comment: Ok, tell me how you would use the penny?
Comment: Sorry, nope, it won't work. The steel sticks to the magnet and won't let it rotate. …
Comment: Ok, good idea about the safe...safe-ty first!! haha Yes, tesla turbines can create pre…
Comment: You have an interesting idea there, but you must realize the possible risks that you ge…
Comment: Lets put it this way... I tried to put steam through the CD discs and the disc pack …
Comment: Using 12-18 small washers/magnets per layer should give more power than my Cd Turbin…
Comment: Yes, you can cut costs in several ways: Don't use a tall CD Case. Use a 1 inch high on…
Comment: I think the kitchen model would be perfect for a science fair project. There are sever…
Comment: You could do that, but it won't work as a Tesla type turbine. It won't be as efficient …
Comment: A few hundred, or even thousand, CD's won't make much difference with the very real pro…
Comment: Domtno, Thanks for your safety concerns. Hopefully, not many people will consider build…
Comment: The balls will work for the top magnets, and that's what I used for my first crude prot…
Comment: Ya, in spite of my own advice, I can't afford magnets right now!
Comment: You can use spacers that aren't magnets...it's just a more tedious. Gluing the more-tha…
Comment: Now there's an interesting phrase! "axial flux alternator"...perhaps you could elabora…
Comment: Filling the pool would be an excellent example of constructive use of the expelled wate…
Comment: Or a few blueberries and a LED throwie into the vortex!
Comment: Yes, and the sparks can fly and things can get hot, so use safety glasses for unknown e…
Comment: That's correct generally...yet an electric field from a copper wire can be attracted or…
Comment: The bottom wire is copper, and should not attract the magnet. It is wrapped around the…
Comment: Here's another of my homopolar movies, called "Homopolar Motor Variation" . I use a pie…
Comment: Ok I get it now...I thought you were building the heart from the coathanger wire, whic…
Comment: You got it...the coathanger wire won't work. You need some copper wire, such as solid 1…
Comment: OK, don't panic...let's review...you made a heart shape? with open or closed bottom? wh…
Comment: Wow, 8 amps available current! Keep in mind with that amount of power, safety glasses …
Comment: Good question! The battery acts as a magnet in that when it is attached to a magnet, it…
Comment: Here's a relevant news report from Chicago 2003, quote " The larger meteorites punche…
Comment: This is an instructable that I read the title and think "no way, no possible way".…
Comment: You could try different-sized disc magnets stacked up. Steel flat washers may work. Al…
Comment: Thanks, I will try an aluminum or copper ball when I run across one. I have determi…
Comment: Congrats! Good work, Frog.I think that the pressure build-up is a natural process of th…
Comment: I tried some small pieces of foam...and you are right. It took a while, but they go dow…
Comment: Hypercube33; Note that a tornado vortex can lift a car.It doesn't matter which way you…
Comment: hahaha...it's a contradiction in terms for some of us. After the prototype CD Turbine "…
Comment: Yes, it helps, especially if the discs are not perfectly aligned. I have used both sili…
Comment: The 1/8 inch cubes were N48. The 1/4 inch spheres at the top of the inside disc pack w…
Comment: Better still, the CD Turbine will actually work without magnets or spacers of any kind.…
Comment: Here is an answer about watts from Yahoo answers... "The conversion from watts to hp is…
Comment: Thanks for the input, Frog. Good, now you have real-life data to back up what you t…
Comment: Oh, and here's what Tesla has to say on that issue... "In my invention practically the…
Comment: Good experimenting! A proper bladed turbine will be efficient. You can buy or make sev…
Comment: Love this instructable! Thanks for the ideas and a laugh or two reading the comments, too!
Comment: Good thinking masterme120. Don't expect a lot of power, and it will reduce the wate…
Comment: k, you asked for it! Yes, holes are drilled in the middle post of the spindle. Make it…
Comment: Wow,Frog, lots of very good questions...let's start with the de-lam. I have run this K…
Comment: Yes, I'm quite familiar with Schaubergers great work! I hope to incorporate his ideas i…
Comment: Yes, this will work as an air or water pump, with little or no modification. It won't b…
Comment: If you build a Tesla CD Turbine, similar to my last instructable, it can be run on 40…
Comment: I estimate that torque would be in the range of a an inch-pound or two for the air-p…
Comment: Hmmm, good constructive idea, rimar2000. Thanks, I'll think about that!
Comment: I like your attitude! However, the rain barrel would have to be suspended about, oh, 60…
Comment: This video was never meant as an instructable, even though it shows how I built the …
Comment: Magnets can be bought from Supermagnetman or K&J Magnetics as well as several other …
Comment: I made this video before my 3 instructables. It shows the initial thought process fo…
Comment: rimar2000, I have 3 instructables on this device, with lots of pictures, words, and vi…
Comment: Cool ideas, but maybe even simpler is the effect when the wires are polished well and…
Comment: Good points. If you really want to be technical, it's actually a 12 speed...6 in r…
Comment: Be sure to check out my new instructable for easier building techniques for the new Kit…
Comment: You could use 3 bottles of whisky or, heck, even 3 bottles of wine. (ha, not) Seri…
Comment: This thing is so alien, that it took me a while to recognize what the heck was going…
Comment: You might be able to use neodymium magnets for holding down the CD.Here's one cool thin…
Comment: haha...You hit the nail on the head with saving humanity from the ordinary, but anyway …
Comment: cool! I guess from your name you probably use lots of power to stir extra large punch …
Comment: Good ideas. I will be trying more stuff with air pressure after I build my new bullet-h…
Comment: Now that I've figured it out, it is very simple, cheap and fast to make, and I could tr…
Comment: Good point, thanks. If the tank was below the level of the turbine, it would provide ad…
Comment: There is no point unless you really like to play with magnets and magnetic fields, hydr…
Comment: Yes, I had to really contain myself for this domesticated stuff. Fun, though. Just not …
Comment: The original Tesla Turbine was designed to be used with any fluid, steam being the most…
Comment: Thanks for the input.Tesla wrote an amazing and inspiring autobiography that should be…
Comment: Yes, right on... thanks! Paint-ball one might work for short blasts, good idea. I actua…
Comment: It seems that it is a problem with Mac/Safari and videos. The videos play fine in Mac/F…
Comment: Hey, I really like the idea of "charging it up", like a bank of capacitors for example.…
Comment: Or click on the IF THIS VIDEO DOES NOT PLAY PLEASE CLICK HERE that I have put in.
Comment: I think you just add "thanksgiving07" to your "tags" at right of your instructable.
Comment: Thanks, I'm glad to be able to shed some light.
Comment: "All sorts of extra work, and for a basically pointless thing, except it would be aweso…
Comment: Thanks... there were a couple of bad links/missing videos that I missed. I just pu…
Comment: No, I think to just stop cutting pumpkins would solve that whole problem!!
Comment: On the other hand, if the jet nozzles were really, really tiny and directed at each dis…
Comment: It's encouraging to see someone even crazier than me, but no, it will blow up like a ba…
Comment: hehehe..i had to think a minute then it hit me.
Comment: Every time we add a system to power another system, inefficiencies and failures increas…
Comment: Yes, I am open to suggestions...especially since I recently became allergic to my u…
Comment: I now have a polycarbonate tube cover with polycarbonate end plates that I will do some…
Comment: Also, my new kitchen version running on water pressure is safe at only about 1000 rpm. …
Comment: Funny, I was thinking same thought today. However, I have now a new design with a suppo…
Comment: Good question!Steampunk relates to a fictional past, like old Victorian times. Except …
Comment: I would, but they might detain you at the border, or send you to a place with a hard-to…
Comment: The torque kinda sucked for this movie, because I accidentally broke the CD case earli…
Comment: hahahaha...such insight!
Comment: Advanced Steampunk version available here http://www.instructables.com/id/Tesla-CD-Turb…
Comment: I recommended a nerf blade in my Instructable!
Comment: Great instructable! I, too, have an Instructable on how to build a Basic Tesla Turbine.…
Comment: For info and an award-winning instructable on just this, go tohttp://www.instructables…
Comment: Whew. Ok for info movie on the magic magnetic coupling go to http://www.youtube.com/wat…
Comment: Hmmm, now that you mention it, if I could combine it with a chainsaw...
Comment: Thank-you for both of your perceptive suggestions. Best prevention re fingers no doubt…
Comment: My cool Tesla CD Turbine, a useful and versatile machine built from CD's, CD spindle, a…
Comment: I just wanted to add a big Thank-You to Instructables for doing the Halloween Contest…
Comment: Very, very impressive. And brave of you to represent an aspect of life cycles (death) t…
Comment: Halloween isn't exactly about practical. I was focussing more on menacing. There a…
Comment: Check out my Steampunk Laser-guided Tesla CD Turbine doing the Pumpkin Cuttin' Ceremony!!
Comment: Then I have accomplished my Halloween Goal!
Comment: Finally someone recognizes me...
Comment: hmmm...you're right . I obviously need to make a chainsaw version.
Comment: Yes, and unlike most props, this one ACTUALLY WORKS!!