Lakshmi’s visit

My young friend Lakshmi visited yesterday. It was an unusual visit in many ways. Usually she comes to help me and comes bearing gifts. Yesterday, she came bearing her troubles and left with some gifts. The first big difference was in me. I avoid watching even sad tv serials and movies – I cannot bear…

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Time : A Recap : All the previous posts cut and pasted together

from : http://ancientindians.wordpress.com/2011/06/26/time-past-present-and-future-bhuta-bhavya-bhavan-nathah-vishnuh/ Reference : The Labyrinth of Time, Introducing the Universe : by Michael Lockwood, Oxford University Press : The ideas below are quoted from or based on this book. Time lies at the core of our strongest emotions. We have nostalgia and relief about the past and anticipation or dread about the future.  Time is a “familiar…

Why should the speed of light be same in all non accelerating frames of reference?

c^2 = permeability of free space*permittivity of free space. As per Maxwell’s electromagnetic equations. If speed of light varied from one inertial frame of reference to another, then physics would be different in every plane, car, planet and so on. Of course Michelson and Morley also proved this experimentally. Once we get this in our…