About the Book: A Brief History of Timekeeping
Entertaining and engrossing Sean Carroll Press the snooze button on your alarm
once too often and you soon remember the importance of good timekeeping. That
need to tell the time connects you to over five thousand years of human history,
from the first solstice markers at Newgrange to quartz crystal oscillating in
your watch today. Science underpins time: measuring the movement of Sun, Earth
and Moon, and unlocking the mysteries of quantum mechanics and relativity
theory-the key to ultra-precise atomic clocks. Yet time is also socially
decided: the Gregorian calendar we use today came out of fraught