If you want to know exactly what time it is, head of over to Boulder, Colorado, where a fountain of cesium atoms ticks off the U.S.'s official time. It should be accurate for the next 300 million years. But don't be impressed—the world's actual most precise clock is a few miles away at a different lab in Boulder, and it supposed to keep perfect time for 5 billion years, the age of our universe.
via Gizmodo http://ift.tt/1DVMSNB http://ift.tt/1GhpFJH
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