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Watching: Watching: Dry ice: is it lethally dangerous

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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. Related: amasci, bottle, glass, lava, melt, melted, microwave, physics, unwise

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. Related: amasci, c02, carbon, dioxide, dry, fog, ice, physics, science

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 Related: amasci, electric, electrostatic, electrostatics, physics, science, static, threads, voltage, wind

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. Related: amasci, diy, drawn, gadget, hand, hologram, holography, optics, physics, project, science

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" . Related: amasci, camera, flir, infrared, night-vision, nightvision, science, thermal, thermography

	Stupid steady-cam tricks 3 Posted by: wbeaty Video duration: 285 seconds Camera as memo recorder, outdoor chase scene, and some really stupid toy ideas (probably worth millions!!!) Also see the secret toy prototyping project: Santarchy Toy Mutations, http://www.youtube.c om/watch?v=mGCsMWoX9 oA Related: amasci, cam, science, steadicam, steady, steadycam, toys, video, videos

PT 2: neodymium supermagnets, beads: amoebas Posted by: wbeaty Video duration: 124 seconds Bought online from various suppliers. Small neo supermagnet spheres are COOL, especially if you have over fifty of 'em. See links to suppliers at bottom of http://amasci.com/sp heres/ I got these 8mm nickel-plate spheres from Mr. George, $0.35 each, http://supermagnetma n.net/ Chrome plate or gold are more expensive than nickel. Related: amasci, biology, chemistry, magnets, nanotech, nanotechnology, neo, neodymium, physics, science, supermagnet, supermagnets

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.) Related: amasci, experiment, fair, led, optics, phosphor, phosphorescent, physics, science, ultraviolet, uv

	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 Related: amasci, experiment, fair, optics, physics, project, science

	How to cross one eye, or speak with an Echo.o.o.o. Posted by: wbeaty Video duration: 187 seconds From http://amasci.com/br ain/ website: Childhood Brain Modification. Instructions on valuable skills: how to cross just one eye, and how to speak with an echo. Related: amasci, brain, humor, modification, science

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