M Dash Foundation: C Cube Learning

Category: basic physics

  • 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…

  • 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…

  • A Question a day, Q4 (series)

    Question: Liliana has a bag of marbles. The bag contains 18 black, 15 red, 11 blue, and 8 white marbles. Liliana randomly takes a red marble from the bag and leaves the marble on a table. What is the probability that she will next take a red or a white marble from the bag?

  • A Question a Day (series) Q3

    The equation v = a*del_t is sometimes used to find velocity when acceleration and time are known. Another form of this equation is v = v_0 + a*del_t. In this second form of the equation, the function of the term v_0 is to: A. indicate that the equation is valid only for an object that…