This classroom-quailty experimental apparatus is excellent for demonstrating the Law of Conservation of Momentum and Trajectory. The unit uses a nylon pendulum with a tapered rubber insert. Both the pendulum and the base have leveling screws. The spring-loaded gun has a self-locking trigger and rubber bumper to prevent damage on impact. The scale is marked in degrees and is registered by a counter-weighted needle that remains in place at the height of the arc. Instructions provided. Measures 16-1/2" x14" x15" and weighs 4.75 lb.
$39.99
$28
Moving Butterfly - Blue Morpho
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
$39.99
$34
The Star-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, writers, students, and you!
$49.99
$34.99
Learn all about the science of light, optics and visual perception with this wonderful kit!
$16.99
$14.99
Build your own windmill generator kit by recycling a plastic bottle!
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