Wednesday, November 05, 2014
Morning Edition Piece on Time and Clocks
Here's a great piece on accurate clocks. Give a listen!
"My own personal opinion is that time is a human construct," says Tom O'Brian. O'Brian has thought a lot about this over the years. He is America's official timekeeper at the National Institute of Standards and Technology in Boulder, Colorado."
Posted by rkamper at 11:48 AM
Labels: atomic, clock, clock history
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