Andy1845c Active Member Feb 16, 2007 #2 That is cool. I wish I had a neodymium magnet that small so I could try it.
ericgibbs Well-Known Member Most Helpful Member Feb 16, 2007 #3 hi Faraday would be well pleased, ever seen a reconstruction of his first motor? **broken link removed** EricG https://en.wikipedia.org/wiki/Homopolar_motor Last edited: Feb 16, 2007
hi Faraday would be well pleased, ever seen a reconstruction of his first motor? **broken link removed** EricG https://en.wikipedia.org/wiki/Homopolar_motor
justDIY Active Member Feb 16, 2007 #4 another really simple motor, which doesn't even need electricity: https://www.metacafe.com/watch/345290/building_the_amazing_steam_candle/
another really simple motor, which doesn't even need electricity: https://www.metacafe.com/watch/345290/building_the_amazing_steam_candle/
audioguru Well-Known Member Most Helpful Member Feb 16, 2007 #5 The poor little battery cell is shorted. It must get about as hot as the tubing in the candle flame.
ericgibbs Well-Known Member Most Helpful Member Feb 16, 2007 #6 hi diy Just watched your link, its a 'must do' for the grand kids!. Thanks Eric. Bit off topic, but did you ever see that Russian designed paraffin lamp that powered a portable radio!,.
hi diy Just watched your link, its a 'must do' for the grand kids!. Thanks Eric. Bit off topic, but did you ever see that Russian designed paraffin lamp that powered a portable radio!,.
Sceadwian Banned Feb 16, 2007 #7 You could use a resistor with really long leads (never seen one) or just use a resistor and a piece of wire to limit current.
You could use a resistor with really long leads (never seen one) or just use a resistor and a piece of wire to limit current.