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Old 01-26-2011, 07:52 AM   #1186
Gravdigr
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I took this picture...from the internet. I just think it's neat.
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Old 01-26-2011, 08:12 AM   #1187
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Reminds me of an experiment my dad worked on a while ago. He was doing something that required redshifting lasers or maybe blueshifting. I don't really remember the details, but it involved going to a very high end stereo shop and buying one of their most expensive woofers. But he only needed one, and they refused to sell him just one speaker, because it was a stereo store and they sold speakers in pairs.

He got the speaker back to the lab, and epoxied a mirror to the cone. Then when he shined a laser at the mirror, he could use some tone generator to run a specific signal through the speaker to get the laser to shift its wavelength or something like that.

It seems like a pretty neat solution to me. And also a travesty that he destroyed this really expensive high end set of woofers.
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Old 01-26-2011, 09:39 AM   #1188
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<cynical> Did they really get that wonderful distribution, or is it shopped? </cynical>
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Old 01-26-2011, 09:50 AM   #1189
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What is it, Dippin' Dots on a popcorn popper?
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Old 01-26-2011, 09:51 AM   #1190
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Sprinkles on a speaker turned face up.
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Old 01-26-2011, 09:53 AM   #1191
Shawnee123
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OH duh! Hence the speaker story.
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Old 01-26-2011, 10:26 AM   #1192
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Quote:
Originally Posted by Pete Zicato View Post
<cynical> Did they really get that wonderful distribution, or is it shopped? </cynical>
There's always some shopping involved these days, but that can be easily achieved with a strobe. The flash duration can be as short a 1/100,000 of a second freezing most moving objects.

They probably then started fussing with individual sprinkles to fill in any empty spots.
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Old 01-26-2011, 10:41 AM   #1193
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Lots of (imaginary ?) circle patterns among the spreckles.
My brain starts looking for words.
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Old 01-26-2011, 10:43 AM   #1194
Shawnee123
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monster for photoshop in aisle 3 please
monster for photoshop, aisle 3
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Old 02-02-2011, 05:15 AM   #1195
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RF Jan. 26th.
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Old 02-02-2011, 09:29 AM   #1196
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Very nice.
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Old 02-02-2011, 11:30 AM   #1197
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I love your picture, Gravdigr.
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Old 02-03-2011, 04:35 AM   #1198
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[Elvis] Thank you, thank you vurry much.[/Elvis]
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Old 02-10-2011, 02:14 PM   #1199
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Tesla motors is opening a location a block from my office. They are having some press event today to celebrate the grand opening, and give rides to the press. Almost as an aside, they have the Dragon capsule by SpaceX. This is the first commercial spacecraft to go into orbit and return safely. Happened just two months ago. This isn't some musty old dust covered relic in the Air and Space Museum from 50 years ago. It's the real deal.

So I had to sneak in and take a couple pictures with my cell phone. As far as I could tell, there was only one member of the press there in the cold tent, and the Tesla workers were looking at me funny, so I didn't stick around long.
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Old 02-10-2011, 02:18 PM   #1200
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Oh, and here are some cool electric cars. I'd love to have one for fun.
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