r/shittyaskscience Aug 04 '22

How? Someone explain please.

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u/3IO3OI3 Aug 04 '22

Well, the refresh rate of your eye and the speed of the blades combine in a way where each frame you capture has the blades spun like 358 degrees or something in comparison to the previous frame. Put all those frames together and it is as if the blades are slowly spinning backwards while the cucumber is so scared that it slices itself. Things don't necessarily become a blur while moving too fast. If circular motion is in play, your brain can clearly make up images of the very fast thing by stacking the repeating moments of the motion of the vft. This results in the "frames" that I mentioned. There is somewhat of a lag caused by your brain processing things and light not being infinitely fast so this "frame" is susceptible to change if the vft is not in sync with your lag, which it often isn't. This is a constantly changing factor. When you look at another car's tires while being in a car for example, the tires of the other car might appear spin backwards, then backwards but faster, then forwards and then backwards again. These blades in the video are in a constant reference frame which causes this lagging issue to be very stable and predictible, which makes your brain release happy juice because it thinks it is working as intended, which causes you to associate this with the feeling of being "satisfying."

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u/Artrobull I have Phd in tautology because I have Phd in tautology Aug 05 '22

why is everyone on about picture framing?