Herman Schneider, award winning author of numerous science books, has taught at the City University of New York and was Science Supervisor of the New York City Elementary Schools.
Sep 01 1988
The Harper Dictionary of Science in Everyday Language: Scientific Terms Explained So You Can Really Understand Them
The relativity theories of Albert Einstein (1879-1955) deal with the most fundamental descriptions of the physical universe: the concepts of time, space, motion, mass and gravitation. To attempt to “explain” (rather than describe) them here would be an act of presumption, for the following reasons: