Understanding Uncertainty (2002)
Probability densities corresponding to the wavefunctions of an electron in a hydrogen atom possessing definite energy levels (increasing from the top of the image to the bottom: n = 1, 2, 3, ...) and angular momentum (increasing across from left to right: s, p, d,...). Brighter areas correspond to higher probability density in a position measurement. Wavefunctions like these are directly comparable to Chladni's figures of acoustic modes of vibration classical physics and are indeed modes of oscillation as well: they possess a sharp energy and thus a keen frequency. Source: http://en.wikipedia.org/wiki/Quantum_mechanics
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Date Added: 10 years ago.
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Understanding: Uncertainty. Quantum mechanics is really out there...a subatomic universe populated by quarks and bosons, capable of spawning such quandaries as: How can a science be based on the principle of uncertainty? What is Schroedinger's cat, and why can't you pet it? This definitive guide provides the answers...no degree from M.I.T. required!
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