Demonstration Materials, Equipment, and Kits - Available Late May, 2008

Lentz's Law (eddy current) Demonstration Kit

Unique science demonstration kits and tools sold exclusively by ExploScience.com  Many of our kits, such as the "Flaming Tornado" are not available anywhere else on the market.

2 ft (61 cm) x 3/4 inch (2 cm) dia copper tube - $36.95

2 ft (61 cm) x 1 inch (2.54 cm) dia copper tube - $42.95

3 ft (.91 m) x 3/4 inch (2 cm) dia copper tube - $46.95

(Click picture to view full video )

Drop a penny into the conductive copper tube and it falls straight through.  Drop one of the powerful neodymium magnets in and watch as it slowly floats down, illustrating eddy currents and Lentz's law.  Teaches magnets, currents, and the effect of passing a moving magnetic source through a conductor.
(Note: copper has increased in cost significantly over the last several months.  These kits are still priced significantly lower than comparable copper products sold by large science supply warehouses)
- each kit inlcludes polished copper tube, 2 neodymium magnets, and instructions.

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