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Styrofoam and Acetone
Posted by: LeeHSL
Video duration: 194 seconds
Acetone breaks the structure of polystyrene in its expanded form, styrofoam. The 'foam' bit goes away. In other words, acetone "dissolves" polystyrene. Also see the video "Pressured Styrofoam" which shows how much of styrofoam is really air.
Related: acetone, dissolve, harry, lee, leehsl, polystyrene, styrofoam
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Water Absorbing Polymer
Posted by: LeeHSL
Video duration: 167 seconds
At the bottom of the cup is half a teaspoon of Sodium Polyacrylate, a polymer which can absorb up to 1,000 times its weight in water. Salt, however, destroys its water retaining capabilities.
Related: absorb, asap, diaper, harry, lee, leehsl, polyacrylate, polymer, salt, sodium, water
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Pressured Styrofoam
Posted by: LeeHSL
Video duration: 52 seconds
As demonstrated in "Styrofoam and Acetone", styrofoam is mainly air. So what happens if we compress a bottle full of styrofoam beads using a hand pump?
Related: air, beads, bottle, compress, harry, lee, leehsl, pressure, pressured, pump, styrofoam
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DIROS - Magic Word
Posted by: LeeHSL
Video duration: 33 seconds
DIROS has a puzzle for you. Will you be the first to solve it?
Related: a=1, contest, diros, displayed, image, magic, operating, puzzle, riddle, solve, system, test, word
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Free the Pot-Plants!
Posted by: LeeHSL
Video duration: 22 seconds
Pot-Plants everywhere are being treated unfairly! Unable to live in their natural environment, and stuck in sometimes unbearably drab urban locations, they yearn for someone to liberate them.
Help SF0 achieve one of our many goals - free a pot plant today!
(www.sf0.org)
Related: biome, free, leehsl, liberate, pant, plant, plot, pot, praxis, sf0, task
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tripod
Posted by: LeeHSL
Video duration: 12 seconds
The first time I've tried moving the camera around... Also, I sped it up from the normal .125 seconds per frame to half of that.
Related: animation, clay, harry, lee, leehsl, tripod
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