stackyFACTSFiguring out the exact curve of a lens used to involve a lot of aggressive guessing before this instrument arrived. A spherometer uses three fixed legs and one adjustable central screw to measure the precise radius of a sphere. It is an oddly specific device dedicated entirely to judging how round something is.
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They don't magically feel temperature from afar; they simply possess the ability to see the invisible, lazy spectrum of light that warm objects continually…
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Because pesky atmospheric air molecules would constantly crash into the high-speed electron barrage, the entire sample chamber must be sucked completely dry…
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When standard rulers are not pretentious enough, scientists use overlapping light beams to measure the impossible. Interferometers split a beam, send it down…
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When literally just one solitary particle of light enters the darkness, these aggressive vacuum tubes trigger a massive, cascading avalanche of rebounding…
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Eyeballing brightness is for amateurs, so scientists built devices that literally catch and count light particles. Photometers convert incoming photons into…
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Light waves normally vibrate in every direction, but if you filter them, they become highly organized straight lines. Polarimeters shoot this polarized light…
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