Axle for investigating rotational oscillation of various test bodies and for determining their moments of inertia from the period of oscillation. With ball-bearing mounted shaft, coil spring and holding lug.
Basic circuit kit, with a switch, (2) 'C' Batteries with Holders, (2) Light Holders, (5) Bulbs, and bulk wire for connecting, for a classroom or home experiment. One kit works well for a group of 3-5 students and demonstrates the pricinples of circuits and electricity
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