US$ 168.32
Pivoted needle-style electroscope that swings on its axis when a charge is applied
demonstrating the mechanism behind crankshaft pistons and steering racks
Two-speed ticker timer kit printing 25 or 40 dots per second on paper tape via carbon discs
Two 250-turn coils of 0
Alnico U-Shape Magnet, 50 x 10 x 9mm Pack Size_Single Pivoted needle-style electroscope that swingsUsed to demonstrate field concentration across a small pole gap, this 50 x 10 x 9mm Alnico U shape carries an 18mm gap and ships with a keeper for storage between investigations.
US$ 168.32
US$ 128.00
US$ 168.32
US$ 168.32
US$ 100.80
US$ 21.00