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@REPLYADDR James Waldby <no@no.no>
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Jim Wilkins <
muratlanne@gmail.com> wrote:
...
> The sine function is a one-dimensional representation of rotation at
> constant speed, such as the height of a bicycle tire valve when the wheel is
> coasting, neither gaining nor losing speed or energy. Thus it`s the AC
> equivalent of a steady state. The cosine is the same, at a right angle to
> the sine, and the two together define and can recreate a circle, and as
> electrical waveforms they can transmit and fully reconstruct rotary motion
> theoretically without loss.
...
On a constant-forward-speed bicycle, tire valves follow cycloidal
paths. See first picture,
https://en.wikipedia.org/wiki/Cycloid .
For sine or cosine the wheel would need to be rotating in place.
--- tin/2.6.2-20220130 ("Convalmore") (Linux/5.15.0-84-generic (x86_64))
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