Why sine wave is the natural wave, why not something else?
In: 78
The 5….uhh, 8 year old explanation is that sine (or sinusoidal functions like cosine) has a number of unique mathematical properties that no other curve has.
The HS explanation is that sine can describe both circles and is given by very simple second order differential equations.
ETA: it also connects the numbers e, pi, 1, and 0.
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