Time Fountain - Water Optical Illusion

"This device creates the illusion that a simple stream of water droplets can defy the known laws of physics. By controlling a set of flickering LEDs, the dripping water can appear to slow down, freeze in mid-air, and even reverse in direction.

This illusion exists because the brain attempts to fill in the gaps between flashes with its anticipated motion. It is the same reason that your brain interprets the 24 frames/second of a movie to be in-motion, rather than recognizing the individual still frames." -Tube
Paybacksays...

ValiantCoward:

You aren't seeing 1 drop moving, it's several drops, each being illuminated at different points in their path from the tap to the pan.

eg: if the lights flash every time each drop is 1" from the pan, it will look like 1 drop hovering 1" above the pan. You won't see when the drops are above or below 1" because the lights aren't lit and the drops are dark.

Same thing happens when a mechanic does the ignition timing on a car engine with a strobe light.

Doc_Msays...

That is probably the cleverest thing I've seen in ages. Wow. That would make a perfect interactive art/science exhibit at a museum. I'd love to see a bigger version or several using materials with different viscosities. Man, I wanna make one at home now.
::storms Radioshack::

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