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Fingernails Chalkboard Music
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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 folk> |
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2739
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| Time:
01:41 |
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Poor man's "Liquid Nitrogen"
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DANGEROUS DEMO! Can't get liquid nitrogen? Then make your own version by using Dry Ice. Note that this demonstration involves several major safety hazards, and should only be performed by skilled professionals.
N> |
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150376
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| Time:
05:11 |
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Edible Lava Lamp? Wind tunnel? Dorkbot Seattle
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Basil Seed Drink plus dry ice: a spontaneous fluid mechanical food device made at Dorkbot techno-artist meeting. Basil Seed Drink can be found at an Asian grocery, or buy it online. In Seattle, dry ice comes from QFC foo> |
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33423
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| Time:
00:57 |
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Unwise Microwave Experiment
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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 o> |
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159489
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| Time:
05:13 |
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Dry Ice: is it LETHALLY DANGEROUS?
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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 yell> |
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227310
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| Time:
04:31 |
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Magnetic field viewer
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Suspended steel filaments make three-dimensional magnetic fields visible. See http://amasci.com/electrom/statbotl.html
I came up with this one for the Electronics exhibit at Museum of Science, but it ended up as a buil> |
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119704
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| Time:
05:16 |
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Self-pumped vacuum capacitor effect
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An attempt to reclaim a lost Nikola Tesla idea-sequence!
The air pressure within a tiny metal-walled chamber full of glowing plasma slowly falls. Air turns to solid oxides/nitrides, leaving vacuum behind. It's a &> |
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43477
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| Time:
04:57 |
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Kelso mineral sample: "UFO Lava?" (UPDATE)
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Closeups of lava fragments found at the 1947 B-25 crash site at Kelso WA. The plane supposedly was carrying "UFO Lava" gathered during the Maury Island UFO incident. I personally suspect that the Flying Saucers a> |
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25808
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| Time:
08:37 |
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Job: Research Engineer
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What does a "research engineer" do all day? We get to play with exotic devices, usually repairing them but sometimes redesigning. (Jeeze, I need to repair the huge broken filling. I didn't realize that I l> |
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11148
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| Time:
03:06 |
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Ultraviolet LED with phosphor paint
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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 scr> |
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23861
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| Time:
04:59 |
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Nikola Tesla exhibit, Vancouver (stills & videos)
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I wear a suit and tie! Gah! The small travelling exhibit from the Beograd Tesla Museum made a stop in downtown Vancouver BC, at the BC Hydro corporate offices. See http://www.teslavancouver2006.com/ During the opening w> |
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23090
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| Time:
02:35 |
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Superconducting NMR magnets
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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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41253
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| Time:
01:19 |
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FLIR thermal infrared: the camera itself, + more demos
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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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93032
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| Time:
03:29 |
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Part 1: Maglev toy: diamagnetic pyrolytic carbon lifts magnets
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A supermagnet cube floats between graphite disks. The cube is lifted by the ceramic magnet a few cm above it, while the two carbon disks repel the cube, keeping it stable. This is the small physics toy sold by Dr. Martin> |
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68649
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| Time:
02:07 |
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Truck wheel reverse illusion: original 6deg pattern
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This hexnuts-disk illustrates my original idea, where each nut on the truck wheel is first aligned radially, then each nut in sequence is positioned rotated backwards by 6 degrees. The flashing facets of the nuts create a> |
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13140
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| Time:
00:38 |
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Apparent reverse motion in truck wheel lug nuts
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The flat facets of chromed lug nuts on spinning truck wheels create patterns of light. These patterns appear to spin slowly backwards. The patterns can be produced by several orientations of lug nuts. Simplest is to adj> |
Views:
10190
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| Time:
01:17 |
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Antigravity 1: camera in a box (first crude test-video)
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See http://amasci.com/amateur/gravcam.html
NASA's "Vomit Comet" transport plane flying parabolas? Too expensive! Instead, make a video using a camera in a box. Now throw the box into the air. It's on> |
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74773
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| Time:
00:40 |
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FLIR thermal infrared camera: hot kitten tracks
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Little hot kittens leave little warm footprints all over your wood floor. "Thermal eye" camera TSC by L3/Raytheon. Sometimes they can be found used on eBay for one or two thousand bucks, search "thermal im> |
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54457
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| Time:
00:46 |
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