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High voltage "Air threads" Posted by: wbeaty
Video duration: 379 seconds http://amasci.com/we ird/unusual/airthred .html Invisible filaments of high voltage "electric wind" are seen to disturb a thin fog layer made with warm water and dry ice. Get the HV power supply from http://amasci.com/em otor/negion.html |
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Unwise Microwave Experiment Posted by: wbeaty
Video duration: 313 seconds Beer bottle in a microwave oven. IT MELTS. No, it's not very safe. Not for kids! That's my original oven from 1994, it's still working fine (but with paint a bit burned.) Whenever you see charred spots on your ceiling, you know that someone's been making plasma balls again. |
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The DISGUSTOSCOPE Posted by: wbeaty
Video duration: 280 seconds Amazingly repulsive, yet 3 simple mirrors just create symmetrical optical geometry. A shining jewel ...made of hairy damp pulsing FLESH. More construction details at http://amasci.com/am ateur/dscope.html |
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hand-drawn holograms Posted by: wbeaty
Video duration: 179 seconds see http://amasci.com/ho lo/ Scratch-holograms can be made on CD cases using a couple of thumbtacks poked through a stick. Or get fancy and use a professional compass and black painted polycarbonate. Or automate the process with a paperclip stuck into a motorized electric eraser. |
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FLIR thermal infrared: the camera itself, + more demos Posted by: wbeaty
Video duration: 209 seconds The FLIR camera sees wet couches, cold cola, and metal mirrors. But it can't see black trash bags! "Thermal Eye" camera TSC by L3/Raytheon. Find them on eBay by searching for keywords "thermal imaging" . |
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Dry Ice: is it LETHALLY DANGEROUS? Posted by: wbeaty
Video duration: 271 seconds Between "Genuine danger" and "Raving Safety Paranoia" there must be some sensible middle ground. Dry ice is fun. Figure out a way to handle it safely. Buy dry ice from suppliers listed in your yellow pages phone book for about $1 per pound. Or in Seattle, get it from QFC grocery, in the seafood section. |
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Fingernails Chalkboard Music Posted by: wbeaty
Video duration: 101 seconds No chalkboard needed: dry ice with warm metal pressed against it. We automated the process with a gearmotor slowly turning a mixing bowl. The two bowls make great sounding boards (the noise was LOUD.) Hosted by the folks at http://www.911media. org/, http://www.dorkbot.o rg/dorkbotsea/ monthly tech/art/DIY meetings. |
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Ultraviolet LED with phosphor paint Posted by: wbeaty
Video duration: 299 seconds Got glow-in-dark paint? UV keychain flashlight? Combine the two. Imagine what you could build. Get UV LEDs from All Electronics or Electronics Goldmine. Get yellow-green "Night glo" Speedball(tm) fabric screen ink from art supply stores. (This is a very early test-video of mine from last April, shot in thumbnail mode.) |
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Superconducting NMR magnets Posted by: wbeaty
Video duration: 79 seconds Refilling the Liquid Nitrogen jacket of the superconducting magnets at work. Water mist so fine, Rayleigh Scattering makes it look blue. (or is that Tyndall Effect?) Next: b-field pattern stands my wire cutters on end. |
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Ascomycetes: cup fungus Peziza domiciliana Posted by: wbeaty
Video duration: 175 seconds Disused for years, this old truck has mushrooms growing in its damp rugs and newspapers. |
![DIY toys: Evil Santa Workshop \](http://img.youtube.com/vi/I7LOqd5XZSU/2.jpg "DIY toys: Evil Santa Workshop \") |
DIY toys: Evil Santa Workshop '08 Posted by: wbeaty
Video duration: 139 seconds Dorkbot and Seattle's 911 gallery host Santarchy mutant toys night 2008. Glue guns and bandsaw provided, bring $5 for the eggnog. |