Where Time Comes From, An Inside Look at Atomic Clocks and Timekeepers at the United States Naval Observatory

“Where Time Comes From” is a fascinating short video by The Atlantic featuring Dr. Demetrios Matsakis, Chief Scientist for Time Services at the United States Naval Observatory, giving a verbal and physical tour of the atomic clocks by which smartphones and the Internet in general keep their time.

The time that ends up on your smartphone—and that synchronizes GPS, military operations, financial transactions, and internet communications—originates in a set of atomic clocks on the grounds of the U.S. Naval Observatory.

submitted via Laughing Squid Tips