Maxwell's Homopolar Motor - battery wire screw magnet

[XxDivineHeartxX]

how quickly does it discharge the battery?

[eliramone12]

thankas, i bought the neodymium

[eliramone12]

do i need the neodymium magenets ? i need 2 '? or can i do it with other tipe of mmagnets like the black ones dont know their name ...  ????

[daemn42]

@eliramone12 It can be done with one magnet, but definitely need neodymium. See earlier comments and responses as to the reason why.

[liceman2coool]

do you need a specific type of magnet? Does it work with the normal black ones?

[daemn42]

@liceman2coool As I commented earlier, generally only a rare earth magnet is powerful enough to support both itself and the screw by the tiny tip of the screw. With a regular magnet it'll just fall off.

[liceman2coool]

@daemn42

Hey! can i know the commercial name of this magnet? is it available in regular stores. Decided to do this for my project. Thanks a lot :)

[daemn42]

@liceman2coool Just do a google search for "Rare earth magnets" or "Neodymium magnets"

[murderXhappyXfairyXt]

why doesnt mine spin?!?!?!?! the wire only attracts the magnet

[daemn42]

@murderXhappyXfairyXt Try a non-ferrous wire, like copper or aluminum.

[ORLYYEARLYNOWAII]

Your voice reminds me of the guy in How to train your dragon :O

[daemn42]

@ORLYYEARLYNOWAII - Having not seen that movie, I'm not sure if that's good or bad. ;) I notice that due to the crappy camera I used for this vid, my voice sounds a bit gravelly.

[92CUNDO]

where can i find these small magnets?

[daemn42]

Radio Shack sometimes carries them.

Lots of places online that carry rare earth magnets.

[92CUNDO]

you can't use just ANY type of magnet right?

[daemn42]

In general only the rare earth magnet will be powerful enough to make the screw stick to the battery by only its tiny tip.

[dasickistdance]

@92CUNDO yea. its called a neodymium magnet. u can get it at radio shack:)

[arnoldcuteaq]

do u know how to make a simple machine using an magnet , battery and a wire..

the battery will be place at the magnet,,

there will be a wire around the magnet,,

at 1st the wire will have to rotate,,

then after that,,

the magnet will rotate,,,

can u do that?

and explain...

[calfellows59]

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[beans416]

I made one of those. The screw works way better than the other kind. Copper soo hard to bend.

[wapperott]

hahaha it works better with a nail!! plus thats smart!!!!!!of me!! :)!!

[daemn42]

Look up the Wikipedia article on Homopolar motors. Current flows through wire/magnet/screw .

The direction of current flow from wire to center of magnet is perpendicular to the magnetic field lines, which causes a force to be generated following the right hand rule.

[DavcomBass]

How can you generate current from this?