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#252229 - 22/03/2005 13:42 LOTD - Solar Death Ray
TheRhino
member

Registered: 06/03/2001
Posts: 135
Loc: Aurora, CO
Solar Death Ray

This is pretty neat. Didn't the Mythbusters guys try something like this? Check out the target gallery. Take that Hootie!
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Rhino
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#252230 - 22/03/2005 13:50 Re: LOTD - Solar Death Ray [Re: TheRhino]
bonzi
pooh-bah

Registered: 13/09/1999
Posts: 2401
Loc: Croatia
I see nothing wrong there. Power estimate is in the ballpark, termal equilibrium discussion a bit simplistic, but basically right...
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#252231 - 22/03/2005 14:09 Re: LOTD - Solar Death Ray [Re: TheRhino]
Dignan
carpal tunnel

Registered: 08/03/2000
Posts: 12318
Loc: Sterling, VA
They did try something like this. They didn't get it to work, though.
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#252232 - 22/03/2005 15:00 Re: LOTD - Solar Death Ray [Re: Dignan]
wfaulk
carpal tunnel

Registered: 25/12/2000
Posts: 16706
Loc: Raleigh, NC US
Yeah, but they were attempting to focus the light at a much greater distance. We know that it's possible in general, because of the existing Solar Power Towers, but they were testing to see if the Greek army could have done it to destroy attacking triremes.
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#252233 - 22/03/2005 15:10 Re: LOTD - Solar Death Ray [Re: wfaulk]
Dignan
carpal tunnel

Registered: 08/03/2000
Posts: 12318
Loc: Sterling, VA
True, but I thought they started with a scale model and tested how well that worked. I guess I'm not remembering the episode very well
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Matt

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#252234 - 22/03/2005 15:21 Re: LOTD - Solar Death Ray [Re: Dignan]
wfaulk
carpal tunnel

Registered: 25/12/2000
Posts: 16706
Loc: Raleigh, NC US
Me either.
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Bitt Faulk

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#252235 - 22/03/2005 16:28 Re: LOTD - Solar Death Ray [Re: Dignan]
ashmoore
addict

Registered: 24/08/1999
Posts: 564
Loc: TX
That mythbusters episode did indeed do a small mockup and it seemed to work. They also tried various materials but I forget which worked best..
Then they tried it the way the ancient greeks were supposed to do it and it failed. They couldn't get everone to focus in exactly the same spot.
Lastly the tried the large scale mounted version and it did start to heat up the boat, but it look so long and did get hot enough to cause any problems.
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#252236 - 22/03/2005 20:31 Re: LOTD - Solar Death Ray [Re: TheRhino]
g_attrill
old hand

Registered: 14/04/2002
Posts: 1172
Loc: Hants, UK
You can always use a fresnel lens. It's not been updated in ages though.

Gareth

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