Drilled Aluminum Pendulum Ball, 25mm Subcategory_Power Supplies demonstrating mechanical-to-electrical energy conversion as

demonstrating mechanical-to-electrical energy conversion as the crank lights the bulb

Enlarged mandible model exposes lower jaw teeth

letting students explore mechanical advantage by counting the supporting strands and measuring effort

offering flexible positioning during force

Used to read the microampere-scale currents found in photodiode and transistor-bias circuits

Drilled Aluminum Pendulum Ball, 25mm Subcategory_Power Supplies demonstrating mechanical-to-electrical energy conversion asAt 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.