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Tuesday, April 28, 2015
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Friday, April 3, 2015
Stroboscope - Motion of a wild cat
The stroboscopic effect is a visual phenomenon caused by aliasing that occurs when continuous motion is represented by a series of short or instantaneous samples. It occurs when the view of a moving object is represented by a series of short samples as distinct from a continuous view, and the moving object is in rotational or other cyclic motion at a rate close to the sampling rate. It also accounts for the "wagon-wheel effect", so-called because in video or film, spoked wheels on horse-drawn wagons sometimes appear to be turning backwards.
A strobe fountain, a stream of water droplets falling at regular intervals lit with a strobe light, is an example of the stroboscopic effect being applied to a cyclic motion that is not rotational. When viewed under normal light, this is a normal water fountain. When viewed under a strobe light with its frequency tuned to the rate at which the droplets fall, the droplets appear to be suspended in mid-air. Adjusting the strobe frequency can make the droplets seemingly move slowly up or down.
HP 50g - Double Integrals in Equation Writer
Use your HP 50g to solve Double Integrals in Calculus 3. New videos every Sunday. Grab your graphing calculator and Subscribe. See you there.
HP 50g - Periodic Table
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Paper Circuits - Blaster Rocket
Author: Larsha Johnson Published: May 26th 2020 Experimental solderless LED kit for kids Designed for kids who want to start ...
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Today's blog is about the 74ls85 TTL. To build a circuit with this chip you will need two 4 pack dip switches and three led's. A da...
