Space Time and Einstein pdf free download Cup your hands together and peer down between your palms. What is between them? One answer is “air”. But we think of air as composed of separate molecules, like isolated islands. What lies between the molecules? Nothing? The distances between the molecules differ. Could there be more “nothing” between some, and less “nothing” between others? Could nothing really exist? The empty space does seem to be nothing. It is tasteless, colorless, and weightless. It does not move, and the gentlest breeze can pass through it without resistance.
Space Time and Einstein pdf free download.
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