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	Podcast:		50 Things That Made the Modern Economy
	Episode:		Clock
	Category:		Business
	Duration:		00:09:09
	Publish Date:		2017-02-18 08:14:00
	Description:		There’s no such thing as “the correct time”. Like the value of money, it’s a convention that derives its usefulness from the widespread acceptance of others. But there is such a thing as accurate timekeeping. That dates from 1656, and a Dutchman named Christiaan Huygens. In the centuries since, as Tim Harford explains, the clock has become utterly essential to almost every area of the modern economy. Producer: Ben Crighton Editors: Richard Knight and Richard Vadon (Image: A wall clock. Credit: Shutterstock)
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