Tag: Einstein
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VI. Einstein’s Theory of General Relativity: History and Mathematics
A Basic Introduction to the Gravitational Field Equation One learns in elementary physics that g represents the acceleration of gravity having units of distance/(time)2 and that E represents the electric field having units of Newtons/Coulomb. We may not have appreciated when first encountering these two important vectors that the mathematical fields associated with them take identical forms, and that they…
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II. Angles and their role in Special Relativity
Introduction Right angles help define the space around us. In addition to their usefulness for local space, right angles are necessary for understanding “inertial reference frames” used in Einstein’s theory of special (and general) relativity. Four thousand years before Einstein, the Egyptians knew how to use geometry and four equally spaced right (90˚) angles for…
Science Essays for College Students 