Mechanical Pendulum
Energy in a Pendulum In a simple pendulum with no friction, mechanical energy is conserved. Total mechanical energy is a combination of kinetic…
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Mechanical clocks history
A Japanese clock ( 和時計, wadokei ) is a mechanical clock that has been made to tell traditional Japanese time. Mechanical clocks were introduced…
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History of cesium
Melting Point: 301.59 K (28.44°C or 83.19°F) Boiling Point: 944 K (671°C or 1240°F) Density: 1.93 grams per cubic centimeter Phase at Room Temperature:…
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Rolex precision history
The history, icons, and the record-breaking models of the Geneva-based Rolex watch company A lavishly illustrated book for the lovers of watches…
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