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the wonder of science

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kitestrings:
My son is learning about magnetism, electricity, a little bit about RE.  We built this small alternator using a skill-saw blade (with teeth removed), 4 permanent magnets, four solenoid coils and an LED lamp








He seemed pretty happy.  This led of course to the ever popular potato, and carrot battery.

~ks

tanner0441:
Hi

Brilliant I put two little magnets on a kiddies windmill didn't generate electricity but with a reed switch in Plasticine on the stick was able to demonstrate how a magnet can do work without touching anything. I tried it with one magnet but even close to the hub it was going to shake things apart...

The kids faces are worth more than any payment you get from a customer...

Brian.

hiker:
putting out electrons with my pedgen bike.[exersize bike]   grandkids have a blast on it making sparks --light--breakin water down into gas...fun build..
heres a link..if it works . !   https://www.youtube.com/watch?v=kSqNOVECurc

hiker:
sparks a flyin--it will give you a good jolt--so the safety guy is their !
https://www.youtube.com/watch?v=5_8-obStUw8

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