One of the things I never fully grasped in college was the ‘Michelson Morley’ experiment. I understood what it was for (proving the constancy of the speed of light) – and understood that it proved that very well – but … Continue reading →

Probably the most startling revelation of Quantum Theory was the postulate that all particles have a waviness to them. Initially, when this was proposed for photons, physicist were more open to accepting it – since light was already clearly a … Continue reading →

Quantum Mechanics starting point – The Schrodinger Equation

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All laws of physics are required to be Lorentz Invariant . The above equation is not. To try and make it Lorentz invariant, we start with looking at … Continue reading →

Imagine you are in a spaceship moving away from the earth at a velocity v. Imagine that a TV broadcast is sent to your spaceship from Earth. How would you see the broadcast?

Some mathematical preliminaries will help figure out … Continue reading →

Light has no mass – yet it can push solar sails. How?
It is true that photons do not have “rest” mass. They do have energy  – and hence an associated mass given by m = E/c2. Light has momentum … Continue reading →

 
If you threw an egg at your bedsheet or blanket (held from all 4 ends), would it break?
The answer is no. Newton said that the force that the egg would experience, would depend on the ‘rapidity’ with which it came … Continue reading →