This quality gyroscope has free-running bearings that allow it to run more than two minutes from a single cord-pull start and features circular guard disks on the axle that prevent the starting cord from becoming trapped in the bearing. The 175-gram solid metal rotor has a moment of inertia of about 2 x 10-5 kgm2. The gyroscope is mounted on a gimbal ring and comes with two stands, one with a rotating frame and the other with rocker feet. A 60-cm starting cord and handle are also supplied. Highly recommended for the classroom setting!
Build a model green house and 9 other green energy-related devices with this great kit!
The Star-Ball Magnetic Puzzle is the perfect creativity tool for innovators, artists, writers, students, and you!
Ever wonder how to survive in the wilderness? These cards can help!
This SUPER Erector Construction set is one of the best you'll find anywhere!
Experience this sphere powered by the sun!
This classic desk toy will keep you amused!
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