The Clock
- Binding: Hardcover
- Publisher: Simon & Schuster
- Publish date: 05/01/2000
Description:
Accurate navigation around the world needed something more accurate than sundials, hourglasses, and pendulum clocks. John Harrison designed a clock small and stable enough to work aboard ship. In this century it was discovered that a quartz crystal would vibrate at a fixed rate when electricity passed through it, and the battery-run watch was born. Today's standard of time is set by the vibrations of a cesium atom. Over the years, clocks have progressed from ways to measure the day to telling time to the beat of an atom!
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Product notice
Returnable at the third party seller's discretion and may come without consumable supplements like access codes, CD's, or workbooks.
| Seller | Condition | Comments | Price |
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HPB Inc.
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Very Good
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$5.06
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Ergodebooks
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$6.94
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GridFreed
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New |
$67.28
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