An order of magnitude is a range of values between a designated lower value and an upper value ten times as large. As an example: The mass of the Earth is 1022 The mass of the Sun is1027 Therefore the the masses of the sun and the earth differ by five orders of magnitude, or [...]

Tags: Scientific Concepts

I am reading The Atom and the Apple by Sebastien Balibar. Dr. Balibar is a professor of physics at the Ecole Nomale Superieure in Paris. I do not believe it is condescending to say that it is a charming book of essays on various subjects of interest in contemporary physics, the Big Bang, the Bose-Einstein [...]