ArticlesBlog SinkScience #10 – Shake Flashlight Shaker August 25, 2019100 Related posts: Science experiment project at school – How to make Free energy with light Bulb very Easy Pepper and Water Magic Trick – Plus a Detailed Scientific Explanation New electricity free energy device Using DC motor & Magnet – Science DIY project easy DIY Electromagnetic Flashlight Related tags : awesome awsome CD cool crazy diy earth electric electricity electronics energy experiment faucet field Flashlight free fun hack home-made htdo-power hydraulics hydro-electric hydrodynamic Keshe magnet magnetic mod Movie mrfixitrick neodymium power rare rare-earth recycle recycling science shake shakelight shaker SinkScience super-magnet supermagnet tech Technology Tesla Turbine water weird Post navigation Previous Article Ledlenser NEO4 Head Torch Unboxing & First Impressions Next Article ThruNite Catapult V6 Mini Thrower Rechargeable Flashlight for Hiking, Camping, and Hunting Comments (100) March 12, 2008 at 12:22 am Yes, it's a generator, or more correctly, an alternator. The circuits in the flashlight change the AC to DC before charging the built-in battery. Nikola Tesla originated the AC motor and alternator, so the shakelight is kind of appropriate with the Tesla CD Turbine. Folks have suggested different generator setups, and I will explore some of these in future videos. Reply March 12, 2008 at 1:42 am It costs less than 6 cents an hour for the well pump to run the turbine = too much fun for very little! Reply March 12, 2008 at 3:40 am lol, that is cheap, if only my water didnt cost that much…. ahh.. the possibilities…. Reply March 12, 2008 at 4:43 am You could run a recirculating setup with an inline electric pump. Then you could play for pennies. Or use the CD Turbine outlet water for some useful low-pressure application like a garden, a pool, or to simply fill up the sink. I happen to be near rainforest conditions, with plenty of water to go round! Reply March 12, 2008 at 8:23 am Innovative 🙂 Keep up the good work! Reply March 12, 2008 at 10:15 am I really enjoy your videos. I love the faucet water driven turbine. I think it is very cool that you are able to get the second flashlight to shake just by its proximity to the first flashlight. ***** Reply March 12, 2008 at 3:37 pm I think Tesla would have enjoyed an AC flashlight recharging wirelessly on a Tesla Turbine. Reply March 14, 2008 at 12:39 am Pretty slick! Reply March 14, 2008 at 1:27 pm know what you should do… make one big copper coil and see if you can power your computer. good idea though put counter weights so your turbine won't shake to destruction. A question how much is you water bill? by the looks of it, looks high Reply March 14, 2008 at 5:22 pm The turbine won't be able to put out enough power to run a computer without hooking up to more pressure…i.e. the mountain creek next to me. I will try wrapping the entire case with wire at some point. My water bill is nil, just a few cents for power for the well pump. I could see that this would be a problem for some on water bill, in which case recycling would be preferred. Run the turbine outlet to fill the sink, a barrel or the pool, or use for low-pressure garden watering. Reply March 15, 2008 at 8:29 am I considered that i have all the materials all i need is magnets. will it work with ordinary magnets or does it have to neodymium Reply March 15, 2008 at 9:54 am You need neodymium magnets or the clutch will slip, that is, the magnetic coupler won't work. I used 1/2 x 1/2 inch N42 neodymium cylinder magnets, but you could get by with smaller ones, especially if they were more powerful. Check out my building instructions at Instructables(dot)com, see link in About This Video Reply March 15, 2008 at 8:16 pm Hey Rick.. when will 9 be up?? Good job though!! Reply March 15, 2008 at 10:07 pm It's coming real soon,"SinkScience#09 – Tesla CD Turbine Power Generator." using a Subaru rad fan motor as a generator. A couple more videos in the works , too! Reply March 17, 2008 at 4:16 am I did consider a compressed air inlet to give a pulsed boost to the water flow. I'm familiar with the venturi principle from automotive carburettors, but I don't know if the introduction of atmospheric air into the inlet would work. What you suggest would be an interesting experiment, and I do need to work with different size and shape nozzles now to see what is best. Reply March 18, 2008 at 8:30 am hey man good work i was thinking about Tesla and maybe use Patent number: 390721 or Patent number: 381970 somehow? Reply March 21, 2008 at 7:09 pm Hey that's a cool idea! Too bad it broke, but now you have a great neodymium magnet to do homopolar motor experiments…see my videos called "Homopolar Motor With 5-speed Shifter " and "These Hearts Are On Fire" Reply March 23, 2008 at 6:16 pm I selected that shake flashlight out of several because it didn't work right, and thought it would be good to show the charging action. If you want that effect with yours, you need to bypass the little battery they have wired into the circuit-board for the light. Or find a shake-light at the dollar store that only flashes without charging. Most shake flashlights have a supermagnet in the on/off button in the outer case. So pass a magnet over the light circuit-board to turn your light off. Reply March 31, 2008 at 11:07 pm Ok…1-2 GPM gets it spinning, 30-40 psi water pressure at the nozzle. This CD Turbine unit does NOT work with steam; warps the polycarbonate CD discs within 2-3 seconds. Will work with compressed air…but gets dangerous at 15,000 rpm. A true Tesla Turbine loves steam. Nikola Tesla built his first 8" to operate at 35,000 rpm and about 40 horsepower, later models into the thousands of horsepower! There are hard-drive platter Tesla turbines on the web. Reply April 12, 2008 at 2:40 am GREAT VIDEO. I now have 2 favorite sites. Reply September 27, 2008 at 10:24 am Read the "more info" >>> for some more info. To sum up, the Tesla CD Turbine is a disc-type turbine based on the invention of Nikola Tesla 100 years ago. My turbine uses CD discs spaced by magnets inside of a CD case with a nozzle glued on, and this one runs on faucet water pressure. The turbine, having magnets, drives a magnetic coupler which has a connecting rod attached to the magnet inside a shake-flashlight. A second light charges by its magnet moving magnetically with the first one. Reply October 23, 2008 at 12:44 pm Hehe, I tried that and it didn't work too well. The all north-up magnets in the turbine don't produce enough power from the coil to light the LED. It might work better with alternating n-s-n-s magnets, or with multiple coils in series. I kinda like the vibration and con-rod linkages…like an old Briggs & Stratton or steam engine! Reply November 6, 2008 at 7:26 am Tell you what…you make and sell them and I only ask for 5 percent of the gross for my share. Deal? Reply November 10, 2008 at 5:08 am Thanks for comments. The impeller is quite wide, and was an experiment to look at the vortex effects and the flywheel effects of a larger mass of fluid. It spins up to 1200 rpm, at about 2-2.5 gallons per minute. What you see here is indeed about 300 rpm, but with a load. I have found it difficult to reach above 1200 rpm on 50 psi water pressure. Do you have a CD turbine working design that does so? Reply November 10, 2008 at 5:46 am Do you use a central opening and the Tesla design? Or are you talking about an impeller which is an entirely different design? Reply November 10, 2008 at 5:49 am Sorry, I meant, do you use a central exhaust outlet like the Tesla design? Reply November 10, 2008 at 8:12 am Hehe, What you are talking about is an entirely different type of turbine. From WiKipedia: "The Tesla turbine is a bladeless centrifugal flow turbine expander patented by Nikola Tesla in 1913. It is referred to as a bladeless turbine because it uses the boundary layer effect and not a fluid impinging upon the blades as in a conventional turbine. " The Tesla Turbine uses a different principle involving viscosity and adhesion, and smooth discs, instead of cups or blades, to transfer the power. Reply November 10, 2008 at 8:33 am ahah…really got you thinking, eh? thanks for the refreshing attention to detail! I optimized the radius of the rod on the magnetic coupler such that the magnet was moved through the coil far enough to light the LED. If the rod is any closer to the center it won't have enough back-and-forth motion to flash the light. Believe me, I spent a few hours with this rig to get it to do this! Reply November 10, 2008 at 7:52 pm Tesla's design works on the principle of adhesion. The fluid goes into a nozzle, where it is accelerated. (Same as your designs, I presume.) As the high-speed fluid leaves the nozzle and enters the case, it is forced between a series of smooth, closely spaced discs. The fluid spirals into the center outlet, while releasing it's energy to the discs. A Tesla Turbine or pump will not cavitate, and the design can handle shock waves and implosion better than any other turbine or pump type. Reply November 12, 2008 at 3:17 am The magnets have several functions, attachments are one of them. There are 1/32 inch spacer magnets between the CD discs in the turbine to space them at the correct distance apart. There also are 6 larger 1/2 inch magnets on the top disc inside the turbine. This enables a magnetic coupling to the magnetic coupler (also with 6 magnets) that you see on top of the turbine. The magnets also create a rotating magnetic field that can generate electrical power with coils. And more…much more! Reply November 15, 2008 at 6:02 pm this is amazing Reply December 10, 2008 at 4:49 am Good question! The arm is close for best torque, to push and pull the shake-light magnet through the magnetic resistance of it's coil of wire. Also, any longer of a radius will make the rod hit on the shake-light case. Also, the turbine has limited torque, so it was a fine balance to get the radius to the con rod arm just right, especially to enable adding the second light. Reply December 17, 2008 at 9:09 am Good guess, and I certainly tried it that way, but that didn't work. What happens is that the neo magnet in the second flashlight gets pushed and pulled by the direct magnetic coupling action of the magnet in the first flashlight. No electro, just magnetic! The electromagnetic coil in the second light charges it's battery from it's own magnet movement. Reply December 25, 2008 at 11:48 am The shake lights are designed with very thin wire, just enough to run 1 LED. Running too many LED's could overamp the wiring. The voltage may need to be increased as well. But it might work for one or two extra LED's..try it! Reply December 28, 2008 at 6:01 pm You are one cool Dud ! ! ! Love your videos 5 stars Reply January 12, 2009 at 6:49 pm 私は将来を参照してください !! Reply January 15, 2009 at 8:23 pm looks like a fuck machine Reply January 22, 2009 at 9:36 am jeez, you use 100 Watts to light a 0.1 Watt LED. Nice work! Reply January 22, 2009 at 10:48 am Very astute! Most folks just waste that power every time they turn the faucet on…what did you do with it today?? Reply January 22, 2009 at 10:48 am beauty is in the eye of the beholder… Reply January 26, 2009 at 2:26 am One could set up things like you say, and the only way it will work is because of the flywheel effect to bring the linkage past that "dead spot". The momentum of the discs and magnets inside the turbine would keep the linkage moving. Same effect as a car engine, which wouldn't work without momentum to bring the crankshaft around. Reply January 28, 2009 at 7:43 am Respect for those who are capable of "DIY". I Know people who don't know how to change a light bulb. Regards! Reply March 12, 2009 at 6:02 am That's right, it would work, but perhaps need different circuitry. Reply March 28, 2009 at 7:59 am You are mad! MAD I SAY! I am so jealous! Reply April 5, 2009 at 5:05 pm This movie is now available as Closed Caption. Reply April 26, 2009 at 3:14 am invent a dildo for girls that can do that Reply May 6, 2009 at 5:34 am It depends on the particular circumstances, and who is doing the measuring of what. For example, a regular turbine won't run on straight biomass combustion gasses without clogging up. It needs expensive filters and polishers to prepare the gasses for burning. A Tesla Turbine has recently been proven to work well in that situation, making it more efficient in that sense. See the wikipedia entry for "tesla Turbine" for more info on efficiency. Reply May 6, 2009 at 5:36 am Don't be jealous…you, too, can be insane! Insanity beats jealousy every time. Reply May 9, 2009 at 12:26 am it would be interesting to use two turbines, and reorient the output of the first to the input of the second. As well as reorienting the light output to be forward. Would be an interesting experiment. Reply May 20, 2009 at 1:24 pm so basically youve just made a pint sized hoover dam…neat? Reply May 20, 2009 at 1:26 pm minus the magnetic coupler of course. Reply June 5, 2009 at 5:36 am With enough pressure and volume, the Tesla Turbine design can power anything. Tesla had designs for cars and ships up to 10,000 horsepower. His smallest commercial turbine could be held in one hand and developed 110 horsepower. They were mostly run on steam, but are capable of running on any fuel. Reply June 7, 2009 at 4:12 pm I like your green generator. The bottles are a cool idea. I wondered about what was used to attach the tubes to them? Reply June 12, 2009 at 1:52 am i wonder how much is your water bill every month Reply June 12, 2009 at 3:34 am My water is on a well…costs me 5 cents an hour for a whole lot of fun! Reply June 12, 2009 at 7:28 am How does the load of a second flashlight affect its performance? Reply June 12, 2009 at 7:35 am Good question! The second flashlight slows down the CD turbine a couple of hundred rpm. A third flashlight can be added if the water pressure is having a good day 😉 Reply June 13, 2009 at 5:59 am I figured so, with the weight of the magnets inside the flashlight. If you're open to new ideas, maybe solder a USB slot to the battery inside the flashlight and charge an iPod? If the voltage is sufficient of course. I think a turbine iPod charger would be pretty fresh. Reply June 14, 2009 at 2:15 am Make a circuit with some capacitors to smooth the current. Reply June 22, 2009 at 5:38 am You misunderstand… the point was not to make it quiet and efficient. It's to make a cool mechanical way to charge 2 flashlights at once. For the fun of it. I am building a dedicated turbine-generator similar to what you speak of, but that is a whole different project, as the N-S magnets cannot then be used as drive magnets like I have done here. Reply July 4, 2009 at 5:33 pm Yes, very similar to a steam engine setup on a train. Reply September 9, 2009 at 5:33 pm The magnets do more than just hold shit together. Yes, they do help hold the disc pack together, but the crazy glue works better. The magnets act as a drive system for many attachments. The magnets make possible to eliminate the shaft and bearings and seals of the turbine, which is a very big idea. A shaft-less, bearing-less, seal-less turbine could have many applications. The magnets can also give power directly by using coils of wire to pick up the energy. Reply September 10, 2009 at 8:00 am The first thing I did with the first turbine I built was mount a skilsaw blade on it magnetically and run it at very high rpm. I admit it did have low torque and would only carve a pumpkin or cut 1 x 2 pine. But hey, its a CD case and CD's !! If I had money I'd build a powerful Tesla Turbine for a vehicle. But I don't, so I do funky home experiments of ideas that might inspire others. Reply September 21, 2009 at 9:48 am Thanks for the reply. I do apologize to a point. And yes I was having a bad day/night. And I watched that one already. And that ain't my truck and thank you for letting me know that is was still on my page so I could delete it. As for your stuff in general it ain't that impressive but neither is mine. But don't waste stuff when your doing it. Use a pump. And I'm some what sorry about all the language. Reply September 21, 2009 at 9:53 am Wait I got more. Why don't you put some type of fins such as old Cd's cut into slices in between the Cd's in the turbine so that you can get better rotation from the same amount of pressure. Maybe even drill holes in the center for the water to run out of where the fins meet the center, I think you would gain a bit more force there to. Also might relieve some of that pressure that is bloating out the spindle case. But I wouldn't listen to me. Reply September 21, 2009 at 11:19 am I appreciate that some folks have concerns about the faucet water used. I live in a rain forest where a lack of water is not so much of a concern. My latest movies show a recirculating system with 12 volt bilge pump run by battery and solar panel, and compressed air through a 12 volt compressor, battery and solar. Reply September 21, 2009 at 11:32 am Thanks for the suggestions. The Tesla design uses only flat discs with spacers, and relies on the boundary layer adhesion (drag) on the discs, in a smooth gradual manner by the fluid, rather than by diverting the flow abruptly. Fins change the nature of the turbine into a normal cupped or bladed design. The Tesla design must maintain pressure in the case to work properly. The fluid exits out the centre after doing its work on the discs. Reply October 7, 2009 at 5:11 pm That is hard to estimate. It would depend on many factors. It would likely cost between $2000 to $20,000 to build a 10-20 horsepower Tesla Turbine. With mass production these costs might only be 1/10 of that estimate. Reply October 11, 2009 at 6:03 pm Hi, MrfixitRick if you have any technical drawings, can make you calculation of real cost for one and ten turbines. Or enibody who is interest. Reply October 11, 2009 at 8:48 pm What kind of turbine are you interested in? A CD Turbine like this one, made from a CD case and CD's and magnets? Or do you mean a true Tesla Turbine that will run on steam? How big do you want? I don't currently have technical drawings. They are available at places like Phoenix Navigation and in Tesla Turbine books. The cost for a 23 disc CD Turbine like in my movie is about $80. The cost for a small Tesla Turbine with metal discs would be from about $200 to $2000, depending on materials. Reply October 11, 2009 at 8:53 pm I mean real one, i work like designer in compani who manufacture fans, we have all kind of machines. And 2000 USD is weri weri hight, I will tomorow create at work one tesla turbine from metal and will show it here, will put there drawings and price. Reply October 12, 2009 at 6:31 am Looking forward to it! Reply October 14, 2009 at 1:39 pm So have add wery short video respond, about turbine what will in short time build Reply October 14, 2009 at 2:20 pm Cool! Thanks for the video. I wish you success in your turbine building, and let me know how it goes. Reply October 14, 2009 at 3:34 pm Can you allow me video respond, that can ewerybody see what we are talking about. Reply October 14, 2009 at 4:53 pm Thanks for the reminder; it's been approved. Reply December 11, 2009 at 7:22 pm The water can go where it is needed…to fill a sink, water a garden or any other low-pressure supply. I have a well that costs 5 cents an hour to run to provide the water, and live in a rain forest with no lack of the wet stuff! Reply January 2, 2010 at 6:38 pm Thats nice.. whats fun when you think about it is that you can use the same mechanism but to power another product… 😛 that can be usefull if the power goes out, you can charge your flaslight, then maybe power something else? ike a radio? or would it need more power? Reply January 3, 2010 at 3:41 am @skullzcrusher It can make a watt or so of power from faucet water pressure, so it could power a small radio. The usefulness in power outages works as long as the water pressure continues. Reply January 30, 2010 at 6:44 am Love it bud, great use of free power…id have gave you 6 stars but it only went up to 5 😛 Now if the power goes out ill be getting free power from my tap and the phone lines 😛 Reply February 2, 2010 at 10:02 pm LOL I was thinking, that it's kinda cool, but kind of defeats it's self because your expending power to power it. But then the second one added! Still kinda useless, but a very cool theory. Reply February 4, 2010 at 8:29 pm Those shaker flashlights are SO useless! Reply February 19, 2010 at 12:08 am And yours was useful? Reply March 29, 2010 at 1:29 am lol Just buy a flash light that plugs into the wall, that flash light is suppose to avoid using power from a utility company, ether way I like it and I get where your coming from. You solved the true problem with it, that you have to shake the damn thing for it to work. Dude Im just a lazy. However you could have just used your time and energy to shake the damn thing rather than inventing whatever that contraption is you got going there Reply April 22, 2010 at 4:17 pm Funny machine, but exactly what is the practical use? Reply January 4, 2011 at 4:57 am I would love to know how grossly inefficient this system is: how little energy that shake light is putting out for how much energy that water pump is using? Reply January 4, 2011 at 11:13 am @HeBreaksLate If the water pump is running anyway, say to fill a sink, then this system is 100% efficient. If the pumped water is not used, then this system is about 1% efficient. BTW, efficiency was not one of my criteria in this experiment. Reply January 4, 2011 at 2:16 pm @MrfixitRick I figured efficiency wasn't a prime concern. It never was for Tesla. A lot of amazing proof of concept stuff, but very little that we practically use today. Reply January 4, 2011 at 9:29 pm @HeBreaksLate Tesla invented the radio…is that not practical? Most AC electric motors today are of Tesla design, such as found in the amazing new Tesla car. AC electric wires on poles over long distances have also proven to be fairly practical; Tesla pushed hard to make that happen. And I understand that the original Tesla Turbine at Niagara falls is still working… Reply May 24, 2011 at 2:15 am @LUCKY4908 I get water pumped from a well. It's rained for about 8 months, so there is no lack of water here. Reply July 25, 2011 at 3:59 am I was wondering if you know this? if the magnet was an electro magnet connected to a battery then moved in and out like your doing here …would there be more electricity generated? Reply July 25, 2011 at 4:36 am @bkfilipi There could be more additional electricity generated if the magnet was an electromagnet…but it would require additional force to make it run. Unfortunately, this device was at the limit of power that the faucet water pressure could produce, so an increased magnetic field with an electromagnet would stall the motion of the device. Reply January 6, 2012 at 10:12 am wont the capacitor blow up from over charging? Reply January 6, 2012 at 10:21 am @lookkool3 Yes, anything could happen. This is an experimental apparatus and should not be left running unattended. Reply May 7, 2012 at 3:22 pm hey jw. if u can mod the shake flashligh to a stronger LED? Reply May 16, 2012 at 12:19 am Did you tried a pendulum to do the magnet movement in this flashlight? I would love to see the efficiency of such device for charging batteries. Reply May 16, 2012 at 12:40 am A very heavy pendulum might be a good way to charge batteries. I suggest you try making your ideas, because it is important to learn about magnets…and you might come up with something nobody else has thought of! Reply April 13, 2013 at 1:18 pm i'll rev it up and see if it still holds together, 😉 Reply March 24, 2014 at 6:41 am do you have any idea how much power you're producing? Reply December 26, 2015 at 3:08 am Thank you. I've had an old one for a long time and it still works good. Reply Comment here Cancel reply Comment Name * Email * Save my name, email, and website in this browser for the next time I comment.