US$ 14.95
passenger deactivation switches
demonstrating mechanical-to-electrical energy conversion as the crank lights the bulb
Five-pack of 3/4-inch steel marbles
3 glass features 10mL capacity with spout for small-volume chemistry and laboratory applications
offering flexible positioning during force
Drilled Aluminum Pendulum Ball, 25mm Subcategory_Power Supplies passenger deactivation switchesAt a full inch diameter, the drilled aluminum ball gives a lightweight contrast to steel and brass balls of the same size in pendulum period and momentum transfer demonstrations.
US$ 14.95
US$ 12.00
US$ 32.95
US$ 59.95