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Your cart is empty.EISCO pith electroscope. Two pith balls on unspun silk demonstrate static electricity. The balls are held by a plated brass pillar mounted on plastic base. Grades 9-14. For age 14-21.
Larry W.
2025-08-20 13:19:39
terrible waste of money, does not work and is very small
Customer
2025-06-18 18:34:26
Worked fine as demo for high school students,,thanks
Elenabel
2025-01-03 10:02:41
These stands are lightweight, but not prone to tipping, and have no obvious weaknesses.Am considering hot-gluing a large, heavy washer into the bottom of each, for extra weight, but they are really quite good.At $5 when bought as an add-on item, these really cannot be beat for the price!I run a group of seven teachers who teach after-school science classes at schools all around our area -- we demand durability and this meets our needs.
Froughieh Michalchik
2024-12-05 12:20:39
I couldn't seem to get this to work. It may be very sensitive to atmospheric humidity oh, but it doesn't seem well-constructed. I'm pretty handy with little science toys usually so I'm probably not doing it wrong
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