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Mark
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Re: youtube

Post by Mark » Tue Nov 23, 2010 8:06 pm

Jem Melts Rock Using Sunshine - Bang Goes The Theory - Series 3, Episode 5 Preview - BBC One
http://www.youtube.com/watch?v=z0_nuvPKIi8
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Mark
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Re: youtube

Post by Mark » Thu Nov 25, 2010 1:44 am

MTM06 : Land Crawler eXtreme Locomotion Demo Video
http://www.youtube.com/watch?v=U5dpGAw4cOU
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Mark
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Re: youtube

Post by Mark » Thu Nov 25, 2010 2:57 pm

Milk trick - (Painful narration)
http://www.youtube.com/watch?v=hPFwDaR1g70
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Mark
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Re: youtube

Post by Mark » Sat Nov 27, 2010 4:18 pm

I was watching a show on sea snakes last night and this particular sea snake being of terrestrial origin can't lay it's eggs in water. So it lays them in this underwater cave. The neat thing about the cave was that a fog or cloud was generated when the waves created high and then low pressure variations. It reminded me of this plastic bottle demonstration.
http://www.youtube.com/watch?v=E8AvfXar9zs
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Mark
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Re: youtube

Post by Mark » Sun Nov 28, 2010 2:58 pm

Bubble Ring Bottle Cap Trick
http://www.youtube.com/watch?v=uJ6sE9-BZUY
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Mark
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Re: youtube

Post by Mark » Wed Dec 01, 2010 12:41 am

"A better understanding of the surface properties of liquid could help with industrial processes, acoustics, and liquid fuel rockets." And maybe jam jars and snorkelers too.
Flying fluids
http://www.youtube.com/watch?v=uzW64CGabRw
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Mark
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Re: youtube

Post by Mark » Sat Dec 04, 2010 4:13 pm

Video: Build a Chevrolet Volt In 1:55
http://www.wired.com/autopia/2010/12/vi ... olt-in-155
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Mark
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Re: youtube

Post by Mark » Sat Dec 04, 2010 5:00 pm

It helps to go full screen with this one.
How an RC airplane buzzed the Statue of Liberty, with no arrests
http://arstechnica.com/gaming/news/2010 ... rrests.ars
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Mark
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Re: youtube

Post by Mark » Sat Dec 04, 2010 11:23 pm

Shooting the 3-Barrel Rapid-Fire Pole Cannon
http://www.youtube.com/watch?v=QNXkUA0KFNY
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Mark
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Re: youtube

Post by Mark » Thu Dec 16, 2010 5:49 pm

Presentation is Everything

Mark
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Re: youtube

Post by Mark » Sat Dec 18, 2010 3:35 am

Some combustion themes ...

The principles of a rocket stove and how to build one.
http://www.youtube.com/watch?v=9uh2VExcdbY

"in the spirit of crappy video is better than no video ..." ha
12 rocket stove mass heaters - efficient wood heat
http://www.youtube.com/watch?v=LfKHVoCY ... re=channel

I liked the flames around the 50 second mark, simple but illustrative
rocket flames - rocket mass heater barrel prep
http://www.youtube.com/watch?v=MpCu7aG3 ... re=channel

rocket mass heater build and burn
http://www.youtube.com/watch?v=2bsUd5zL ... re=channel

rocket mass heater uses less wood than a wood stove
http://www.youtube.com/watch?v=_jfag47d ... re=channel

Rocket Stove Explained
http://www.youtube.com/watch?v=nio61fMjDy4
http://www.youtube.com/watch?v=RJVCEfNahJk
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Mark
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Re: youtube

Post by Mark » Sun Dec 19, 2010 6:46 am

Ladybug plays with sprinkles
http://www.youtube.com/watch?v=gkr0VYcZ-eY
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Mark
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Re: youtube

Post by Mark » Thu Dec 23, 2010 5:38 am

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Mark
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Re: youtube

Post by Mark » Tue Dec 28, 2010 3:34 am

Most demonstrations like this talk about the triple bond energy of acetylene. I had a shop teacher do this one for our chemisty class in high school. And yes it was loud.
http://www.youtube.com/watch?v=X1LwYJ8pDhc

But I kind of like this one too. One time I sprayed pure oxygen into my little Logan pulsejet with some methanol coating the insides and lit it. I about went deaf. I think though this demo is probably hydrogen and oxygen or maybe methane and oxygen, if that would be light enough. Still though, the effect is roughly the same. Note the balloon appears lighter than air.
Methanol Balloon Explosion
http://www.youtube.com/watch?v=HtazShxttrQ
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PyroJoe
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Re: youtube

Post by PyroJoe » Tue Dec 28, 2010 3:27 pm

http://www.youtube.com/watch?v=ptiCFq5Y ... re=related

"Its gonna happen trust me"

"intensity falls off as the square of the distance"

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