Need Science Help. Is this safe?

On my ongoing quest to find a science fair, I stumbled upon this : it's basicalle a high voltage motor that acts like a bell, with a clapper that bangs from one can (or bell) to the other and back again.

The thing is, it get's it energy by putting an aluminum foil over a TV screen, which has a lot of static electricity.

I was wondering, is this safe?

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Kiteman9 years ago
Just going by the description, I'd say you're looking at Franklin's Bells.

Franklin is credited with the original design, but he was corresponding with an Englishman, John Canton, and many believe the idea was a mutual invention, drawing on both people.

The original version had one bell connected to a high antenna, and the other to Earth (ground). As a thunderstorm approached, the antenna picked up charge and transferred it to Earth via the bells. I run them off a VdG to provide a constant supply of charge, but a CRT will work them if you keep switching it on and off.

They're safe, as long as you don't have a pacemaker and don't run them off actual lightning.
Kiteman Kiteman9 years ago
BTW, your picture won't open.
Keith-Kid (author)  Kiteman9 years ago
Yeah, for some reason it wouldn't upload properly, and it got uploaded as a file, instead of an image. Here is the link:
Ah! That's one of Simon Quellen Field's.

Original SciToys link

Yes, that's safe, go for it.
Just noted your link and, for my money, his book, gizmos and gagdets should be required reading in school science classes....
Keith-Kid (author)  Kiteman9 years ago
Your advice is as good as it gets. I can't wait to sue you!
Terms and conditions apply
Keith-Kid (author) 9 years ago
I expected something like that, I'm just worried over how much the tv would give off.....
static is not really static, but besides that, the voltage is very high (but you have received those shocks before) and the amperage nearly nonexistent.
i.e., it will make the hair of you hand stand on end, and make a crinkling sound....but not much more than that.
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