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I once read a science fiction story in which Our Hero
himself on another planet, incarcerated in a room that
a clock with three one-needle dials, each needle moved
a different speed.
Anyway, we could imagine a clock that contains three
display "faces", behind which are a
set of colored LED
lights, each of which can be controlled separately. (see
link). Since the eye can distinguish many thousands of
colors, one display-face could go through its complete
color-change sequence over the course of exactly one
minute, the second display-face would go through its
complete color-change sequence over the course of an
hour, and the third over the course of a full 24-hour day.
Anyone with normal eyesight who sees such a clock often
enough would eventually know from a glance at the
on its display-faces what the time was, likely fairly
color-changing light sequence
As mentioned in the main text. [Vernon, Oct 31 2017]
Inspiration for this Idea
Misinterpretation is occasionally useful! [Vernon, Oct 31 2017]
There are way more visually detectable different shades of color than there are seconds in a day. [Vernon, Oct 31 2017, last modified Nov 01 2017]
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||This is actually pretty good, and reasonably bake-able.
Who are you, and what have you done with the real [Vernon]?
Now, would the colour-change sequence be a linear "up through the wavelengths", or a cycle through RGB values?
||// "up through the wavelengths" //
||Er, "down through the wavelengths", shirley ?
||Red is a long wavelength, lower energy - violet is higher energy, shorter wavelength. So the inidication should start at "zero", which would be right on the boundary between near-IR and visible red, and become progressively more energetic until it reaches the edge of ultra-violet.
||Interestingly*, although our ears can hear about 8 octaves, our eyes can see less than one octave.
||[*This may or may not be the case.]
||[neutrinos shadow], if you watched the video at the first
link, you would see the colors change through the
spectrum from red to blue, and then become
purple/magenta, eventually turning red again. It's neat if
only because each color-change is done so smoothly.
||[MaxwellBuchanan], while indeed the human eye basically
sees only one octave of the electromagnetic spectrum, its
can accommodate lots of information, and thus the
human eye can literally see anywhere from a
hundred thousand to ten million different shades of color,
depending on the way the researchers test it. See the