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| Hand Driven
Rotator |
Loop-the-Look
Apparatus |
Hand Driven Rotator
A cast iron rotator for use with accessories to demonstrate centrifugal
force, properties of light and color and other phenomena. Heavy
metal frame provides support in both horizontal and vertical positions.
Round leather belt links a 7-inch diameter drive wheel to a 1-inch
diameter pulley. The end of the spindle is a 1-inch diameter socket
with a T-head bolt for holding accessories. 18" x 9" x 6.5"
No. SF534-RT. Only $79.95
Loop-the-Loop Apparatus
This unit demonstrate s the transformation between kinetic and potential
energies when a steel ball runs on the 52" looped aluminum track.
(Diameter of the loop is 8" ) Track is mounted on a11.5" x 4" sturdy
cast iron base. A basket is attached at the end of the track to
catch the ball. Comes with two chrome plated steel balls. 18"
x 14" x 4"
No. SF534-AA. Only $32.95 |
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Gyroscope
This classic toy demonstrates the stability caused by centrifugal force. It will
spin on its pedestal or on top of your finger. Includes instructions for many tricks.
No. SF534-G1. Only $5.75 |
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