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  • Newton’s Laws of Motions

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    by

    John Mulindi
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    Before Einstein, physicists believed that the behaviour of almost everything was controlled by three rules called “Newton’s Laws of Motion”. The basic point was to relate the motion of objects to the “forces” that act on that object. These forces picked out certain reference frames as special (Inertial frames). Newton’s First Law of Motion This…

  • The Limitations of Classical Physics

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    by

    John Mulindi
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    Light waves and other forms of electromagnetic waves travel through free space at the speed c = 3.0 x 108 m/s. The speed of light sets an upper limit for the speeds of particles, waves and the transmission of information. In our everyday experiences, we mostly deal with objects that move at speeds much less…

  • Quantum Mechanics vs. Newtonian Mechanics

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    by

    John Mulindi
    in

    Though quantum mechanics is a dynamical theory much like Newtonian mechanics, there are key differences between the two. In Newton’s mechanics, the state of a particle at t = 0 is specified by giving its initial position x (0) and velocity v (0) – only two numbers; Quantum mechanics demands an entire wavefunction ψ (x,…