Wednesday, January 2, 2013

One of the Great Mysteries of Our Universe

VOA Learning English: One of the Great Mysteries of Our Universe

​​If you can read a clock, you can know the time of day. But no one knows what time itself is. We cannot see it. We cannot touch it. We cannot hear it. We know it only by the way we mark its passing. For all our success in measuring the smallest parts of time, time remains one of the great mysteries of the universe. (read more) (LISTEN)

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