Scientist's Guide to Physics: Time

Product Description

The concept of time is both fluid and concrete. Its passing is evident when the sun rises and sets and the stars move across the sky, when we feel the seasons change, and we watch as people age year after year. But it is also intangible - one person says, "I'm having the time of my life," and another says, "I have time on my hands." Here time is an abstract idea, more than just an unvarying stream from the past through the present and on to the future.