M Dash Foundation: C Cube Learning

Category: Relativity

  • Did Newton know Quantum Mechanics?

    My insight of the day. Quantum Mechanics makes Newton’s Law consistent in its two forms. Otherwise they would be inconsistent. So Newton knew some QMech. He knew 1. F=ma=mdv/dt and 2. F=dp/dt. These two are consistent in a framework where wave-particles are central. Because F=ma corresponds to particles and F=dp/dt corresponds to waves. I will…

  • How to add speeds; Galileo and Einstein won’t agree.

    How to add speeds; Galileo and Einstein won’t agree.

    How to calculate the speed of anything, when their speed becomes closer to the speed-of-light.  This article was originally a comment in the linked article;  Why Nothing Moves Faster Than Light. — In order to correct the comment I have made earlier  ” unless something is completely mass-less in its rest-frame ” I also add the following. This…

  • The Boson conundrum and the fishing tendency.

    As scientists Einstein and Bose were not particle physicists. Less so Einstein did not even believe in Quantum Mechanics which later he had to recant, but Quantum Mechanics as developed by others (Schrodinger, Dirac, Heisenberg, Feynman, Bohr et al) is the most important basis of Particle Physics as a research field. Einstein while is credited…

  • Equivalence from simple notions of Geometry ? Yes.

    Now it may also be related that light bends in a denser media compared to a rarer media because an additional rotational force is working. In other words, the definition of straight line has to change in the medium, that is of different density, because path of light is changing. Light is the guy who…

  • Physics Class Test, XII {PU/ISc/ICSE/CBSE}

    A. What’s the speed of an electron in a cathode ray tube if the electric field and magnetic field are of unit strength in SI unit? Calculate magnetic force experienced by the electron. 4 marks B. Derive the formula for magnetic field produced by an infinitely long straight conductor. 4 marks