Exx-007 Unbelievable! Huge Homopolar Motor Runs On Only 2 Volt

[@edwingolddelirium]

You can do that also with the axle from a wind turbine. Then it spins also without the wind .the wind is then only the starter.One serpent coil to drive the shaft and three serpent coils for generate your home.

[@VortekStarling]

I have one for you. Instead of a copper disk, a copper cone, point cut off a little. Instead of brushes, or ends of wires, the cone would roll around a central pivot, where the axle would be in a standard Faraday generator, on two rings, one at the fat end and the other at the small end. The cone would obviously be half the diameter of the magnet disk. I guess it might spark along the ring-tracks though. Also I guess you'd need two, one on each half of the disk face, to balance it. Could probably fit 3 or 4 such cones over the magnet actually. Come to think of it, centrifugal force would try to push the cone down toward the magnet, so its mass would be centered in relation to its rotation around the center of the magnet disk. That pressure should help maintain good contact with the rings. The faster the motor turns, the harder the fat end of the cone would be pressed down against the tracks. Kind of a self-aiding effect there. The small end of the cone would obviously be tethered to the center point of the magnet so it doesn't fly off. The conical Faraday motor/generator may be the best version ever, and nobody on Earth has actually made one yet. It only exists in my head right now.

[@scienceexxience]

What would be advantage of using a copper cone? A drawing would help to visualize your idea.

[@strangescience3414]

think he's saying to make the contact diameter smaller and reduce friction on the ends🤔is that what you are saying???

[@Greg_Chase]

**WHAT WE'RE MISSING HERE** Highly efficient homopolar motor/generator. You have a *lot* of friction in yours. What about more power? Without needing all those caps? Better design: 1) coils, not permanent magnets in the ends of the rotor - aka "field coils". Magnets have a fixed-strength field. Their field strength is limited. Their field strength cannot grow. Since we always need more power, use a coil. Coils used as electromagnets create a magnetic field strength proportional to the amount of current you put through the coil. More control over the magnetic field. 2) a self-excitation positive feedback loop -- you tap the output, feed it back to the field coils en.wikipedia.org/wiki/Excitation_(magnetic)#Self_excitation 3) the output is fed back to field coils, coils produce stronger field, produce higher output, you feed it back to the field coils, etc. 4) need an initial "seed" current on the field coils to get the thing going, just like 'priming a pump' 5) maglev touchpoints for the 2 ends of that center axle so no physical contact between rotor and anything else that would slow it down. Mag levitate the rotor. Frictionless. What's the limit - ie. when will the self-excitation, the positive feedback loop from the homopolor's output reach its max feedback potential? Well if the field coils had an iron core you'd say "when the iron core saturates", ie. when all the magnetic domains in the iron core are all aligned, the field cannot grown any stronger and the self-excitation can no longer boost the output. But there *is* no iron core with a field coil. So what's the limit for the self excitation? When does the positive feedback self-excitation loop *stop* growing the field coil's magnetic field any further? - when the field coils get too hot? okay supercool them - after supercooling, is the physical size of the field coil a limit to how much further the self-excitement loop can grow the strength of the field coil's magnetic field? Then use a physically larger field coil Needs more power. Less friction. How? The steps above. MORE POWER is always better. More power, less friction, none of these freaking dangerous super capacitors mein gott. **BONUS TIP** To eliminate the friction caused by the copper reed straps at each end that you're using to provide (motor) or supply (for a generator) power, use a fluid contact. This can be brine (salt water), gallium, or mercury. Brine's pretty safe, so if gallium. If you maglev the rotor (at the axle ends) and use liquid contacts, the only remaining friction would be the air. The self-excitation positive feedback would keep the rotor going and going and going....... without the need for a battery, supercaps or a power supply . . . .

[@scienceexxience]

These are interesting ideas, indeed. Based on practical experience with this unit here is my take on them. First of all, the goal of these initial videos is to get a feeling what electricity is. The whole world as it is now is dependent on electricity, yet we know so little about this strange (electric) entity. We can measure Ampere, Vol, etc. but do we know how it really works or what it is? In this particular video we simply wanted to demonstrate that tension (of more than 1V) is not required to make this large rotor turn. We needed these (mein Gott :)) ultra-caps for that, since they supply plenty of current even when they are (partially) discharged. It would not have worked with a 6V car battery. The current draw is too big for a battery to handle it when tension is that low. But with the caps it worked out fine. The only problems is how to charge the caps when they are almost "empty". You can't use a battery charger ... but that's maybe something for another video. Re 1) coils - we have a rotor made with coils - at the end of video Exx-008 we show a picture. But it is difficult to make it turn initially. Side by side, the permanent magnet rotor outperforms the coil one. Re 2), 3) This would be difficult to incorporate in the set-up. We rather try to capture some atmospheric electricity - en.wikipedia.org/wiki/Atmospheric_electricity - what we have planned for the future (the unit standing upright). Re Bonus Tip: The liquid won't work here because the rotor needs to be able to "grab" on the contact bands to turn itself. See at 9:10 kzbin.info/www/bejne/d4vHfmWrjJx_n6s how the bands get bent. A semi-flexible connection as we use it here seems to be the best.

[@strangescience3414]

if I make something like this would you watch the video 🤷‍♂️

[@cityzen8539]

i have suggestion for next experiment. instead of using magnet both at the very end, use helical coil wound in axis(it act like a magnet) and a capacitor parallel with the coil, it must provide good result at a 1/4 resonant point(frequency of the slip ring). dont use metalic/condugtor at the center of the coil cuz at resonant point it also act like induction heater. thx for sharing