Category: waves and particles

  • Inherent ability = difficulty * accomplishment.

    All of Physics is this “Inherent ability = difficulty * accomplishment”. Thats just intuitive but can easily be seen to correspond mathematically with the Principle of least action. First the edifice: whats the problem? The problem is given you move in straight line when every direction is same around you, which direction will you chose?…

  • What happens when squirrels do not move.

    What happens when squirrels do not move.

    Stationary state and squirrels ! Okay so the squirrel isn’t moving around so much, giving a fuzzy image. We can call the instant during which the squirrel wasn’t moving akin to a “gross” stationary state. But why is the railing of window fuzzy? It isn’t moving ! Diffraction. Due to diffraction enough light is coming…

  • Waves, particles and Einstein !

    Waves, particles and Einstein !

    Waves are something that have no mass and move at the maximum speed, mass m = 0. speed c = 1. So whats their momentum? p = m.v = 0? Right? No. For pure waves; momentum does not come from mass. It comes only from motion. (pure wave; they do not have mass) For matter…

  • The time-energy uncertainty relation.

    The time-energy uncertainty relation.

    The time-energy uncertainty relation is a blessing in disguise which comes in handy to check various values that are quoted, so as to see if something is inconsistent or not. It’s very powerful in guiding to check if we are ourselves making something silly or not. I have described in two recent articles — will…