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The mysterious Antikythera Mechanism is 2,000 years old and has long puzzled scientists. New research into its triangle-shaped teeth may finally reveal its intended purpose.
The mechanisms for a waving wind-up toy is adjusted to fit the shape of a turtle. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert!
A wheel and axle mechanism is a simple device you make when you connect ... Both the bicycle and the toy car have wheel and axle mechanisms that help them to move. So, how does this work?