A Brief History of Timekeeping

The Science of Marking Time, from Stonehenge to Atomic Clocks

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Pub Date 25 Jan 2022 | Archive Date 08 Nov 2021

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Description

"A wonderful look into understanding and recording time, Orzel’s latest is appropriate for all readers who are curious about those ticks and tocks that mark nearly every aspect of our lives."
Booklist
 
 
It’s all a matter of time—literally.

From the movements of the spheres to the slipperiness of relativity, the story of science unfolds through the fascinating history of humanity’s efforts to keep time.


Our modern lives are ruled by clocks and watches, smartphone apps and calendar programs. While our gadgets may be new, however, the drive to measure and master time is anything but—and in A Brief History of Timekeeping, Chad Orzel traces the path from Stonehenge to your smartphone.

Predating written language and marching on through human history, the desire for ever-better timekeeping has spurred technological innovation and sparked theories that radically reshaped our understanding of the universe and our place in it.

Orzel, a physicist and the bestselling author of Breakfast with Einstein and How to Teach Quantum Physics to Your Dog continues his tradition of demystifying thorny scientific concepts by using the clocks and calendars central to our everyday activities as a jumping-off point to explore the science underlying the ways we keep track of our time. Ancient solstice markers (which still work perfectly 5,000 years later) depend on the basic astrophysics of our solar system; mechanical clocks owe their development to Newtonian physics; and the ultra-precise atomic timekeeping that enables GPS hinges on the predictable oddities of quantum mechanics. 

Along the way, Orzel visits the delicate negotiations involved in Gregorian calendar reform, the intricate and entirely unique system employed by the Maya, and how the problem of synchronizing clocks at different locations ultimately required us to abandon the idea of time as an absolute and universal quantity. Sharp and engaging, A Brief History of Timekeeping is a story not just about the science of sundials, sandglasses, and mechanical clocks, but also the politics of calendars and time zones, the philosophy of measurement, and the nature of space and time itself. 

For those interested in science, technology, or history, or anyone who’s ever wondered about the instruments that divide our days into moments: the time you spend reading this book may fly, and it is certain to be well spent.
"A wonderful look into understanding and recording time, Orzel’s latest is appropriate for all readers who are curious about those ticks and tocks that mark nearly every aspect of our lives."
Booklist...

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Featured Reviews

Solstice caves. Gregorian compromise. "Give us our 11 days!" Mayan calendar ends (order your refills!). tictictic, the measure of time. Orzel writes really clearly, even when the story is convoluted. The Julian calendar worked for 15 centuries before its rounding-error affected everyday life. I've read on this change in many books, but Orzel's is by far the best. But he also explains the Hebrew and Islamic moon-based calendars. One I never understood and the other was rare in my life until recently. Chronometers, for surveying and particularly for locating yourself east-to-west on the high seas, in search of treasure. If you dig time, you must read this. Easily the best I have ever seen.

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This is a solid entry in the history of timekeeping genre. It's not technical so intelligent non-specialists should be OK with most of it. If you do have a technical background, there's enough here to keep your interest going. My one criticism would be more about editing than the coverage of the topic. Instead of starting with the oldest known timekeeping efforts, we need a big beginning to get our attention. My interest waned as I worked my through the older history, though I had seen a lot of the material before. Recommended for interested teens through all ages.

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