This is the same sort of fascination one has while watching a juggler...except the juggler is real, and this is optical illusion.
OK....it's the same sort of fascination one has, fixated on the process, while the toddler is about to take his/her first step...neither is illusion, just .... fascination.
You guys are all idiots. An engineer who failed his exams knows how this works. If you can't work it out go back to youtube and make asses of yourselves there.
Just for example sake:
Assume the drops are dropping at 60/sec
If you flash (strobe) the light at exactly 60 Hz (60/sec) the drops will appear stopped.
Adjust the strobe to 59.9Hz. The light flashes just a little before the drop is in place and the water will "appear" to be rising.
So oviously, if you adjust the strobe to 60.1Hz the water will "appear" to fall.
The further the Hz deviation, the faster the movement.
It's a blast to do on a motor shaft spinning at 8000RPM!
Looks like it's stopped. Who wants to grab it?
Would make a hell of a party gag!
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