The Tedco Gyroscope is the original and best science toy. Set it spinning with its string, and it'll rotate for ages on a finger, ball point pen, or even hop along a piece of string. These gyroscopes have been at it since 1917, made from aluminium and precision engineered ball bearings.
The Tedco Toy company makes these in Hagerstown, Indiana, USA. All their toys are dedicated to teaching science. The gyroscope is a demonstration of Sir Isaac Newton's Laws of Motion, including inertia, and angular motion.
Aviation auto-pilots, naval navigation systems, and sophisticated oil drilling gear in WA's North-West are all reliant on gyroscopes. Whilst a Tedco Gyroscope will amaze and entertain, it could well set a recipient on a path to a scientific future.
YouTube has a really good video about Tedco's famous gyroscope : http://www.youtube.com/watch?v=5nsCjTApzH8
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