Tag: physics
All the articles with the tag "physics".
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Heisenberg uncertainty as Fourier duality
Posted on:The textbook framing makes the uncertainty principle sound like a measurement artifact. It isn't. It is a property of any wave: a packet narrow in x has a Fourier decomposition spread in p, with the bound σx · σp ≥ ℏ/2 saturated by a Gaussian. This post derives that statement from photoelectric-effect-level physics.
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An analogy for the Doppler effect
Posted on:A simple analogy to explain the Doppler effect using the concept of throwing balls between two people. Designed to make the physics concept intuitive and accessible to a layperson.