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> Solar Death Ray!, No, i am not back for good.
Arachnidoc18
post Apr 1 2005, 10:27 PM
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This is by far the coolest thing I have ever seen all year.
Solar Death Ray!


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saucy_tara
post Apr 1 2005, 10:31 PM
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That is really, really silly Doc!!! I like the easter Bunny's eye....


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Quoth(The Raven)
post Apr 3 2005, 06:21 AM
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This is truly bizarre!

I suppose this is based on the myth that the ancient greeks used solar power to destroy enemy ships? I saw an episode of Mythbusters where they proved that that couldn't be done with the technology they had, back then, and probably not with technology today... but apparently, the tech CAN be used to torture food stuffs... laugh.gif


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Greeneyes
post Apr 3 2005, 11:33 AM
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Yup. Parabolic mirror + sunlight + sausage = cooked sausage.


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Moosh
post Apr 3 2005, 01:55 PM
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QUOTE (Quoth(The Raven) @ Apr 3 2005, 07:21 AM)
This is truly bizarre!

I suppose this is based on the myth that the ancient greeks used solar power to destroy enemy ships?  I saw an episode of Mythbusters where they proved that that couldn't be done with the technology they had, back then, and probably not with technology today... but apparently, the tech CAN be used to torture food stuffs... laugh.gif
*


Cunningly I found this on the FAQ section of the site

QUOTE
What about that episode of MythBusters?
MythBusters is a show on the Discovery Channel, where some talented people
test various myths and urban legends. During episode 16, they tackled the
question "Did the Greek scientist Archimedes set fire to a Roman fleet of ships
using only mirrors and sunlight?" They built a very large but eerily similar cousin
of the Solar Death Ray and tried to set a chunk of a recreated Roman boat on
fire. Long story short: they couldn't get it to work. And yet my version does...
Why? Well, for one thing, I'm trying to focus light on an object a few feet from the
mirrors, and they were trying to focus on an object dozens of feet away. The
farther away the target, the more precisely aligned your mirrors have to be. I know
my mirrors have to be within about +- 0.5 degrees to properly focus light on the
target, and so the MythBusters had to have mirrors much more precisely aligned. I
don't know how they aligned their mirrors, but I suspect that was the problem. In
addition, I would have used a concentrator design much different from both their
version and the Solar Death Ray. Still, I agree with their conclusion: It would be
very difficult, but not impossible, for Archimedes to have pulled this off, mainly
because of the manufacturing tolerances involved. But if Archimedes had the
resources...


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Arachnidoc18
post Apr 3 2005, 07:01 PM
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QUOTE (Greeneyes @ Apr 3 2005, 05:33 AM)
Yup. Parabolic mirror + sunlight + sausage = cooked sausage.
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Hope you like it extra, extra-well done.


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Quoth(The Raven)
post Apr 4 2005, 03:37 AM
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QUOTE (CheeseMoose @ Apr 3 2005, 08:55 AM)
QUOTE (Quoth(The Raven) @ Apr 3 2005, 07:21 AM)
This is truly bizarre!

I suppose this is based on the myth that the ancient greeks used solar power to destroy enemy ships?  I saw an episode of Mythbusters where they proved that that couldn't be done with the technology they had, back then, and probably not with technology today... but apparently, the tech CAN be used to torture food stuffs... laugh.gif
*


Cunningly I found this on the FAQ section of the site

QUOTE
What about that episode of MythBusters?
MythBusters is a show on the Discovery Channel, where some talented people
test various myths and urban legends. During episode 16, they tackled the
question "Did the Greek scientist Archimedes set fire to a Roman fleet of ships
using only mirrors and sunlight?" They built a very large but eerily similar cousin
of the Solar Death Ray and tried to set a chunk of a recreated Roman boat on
fire. Long story short: they couldn't get it to work. And yet my version does...
Why? Well, for one thing, I'm trying to focus light on an object a few feet from the
mirrors, and they were trying to focus on an object dozens of feet away. The
farther away the target, the more precisely aligned your mirrors have to be. I know
my mirrors have to be within about +- 0.5 degrees to properly focus light on the
target, and so the MythBusters had to have mirrors much more precisely aligned. I
don't know how they aligned their mirrors, but I suspect that was the problem. In
addition, I would have used a concentrator design much different from both their
version and the Solar Death Ray. Still, I agree with their conclusion: It would be
very difficult, but not impossible, for Archimedes to have pulled this off, mainly
because of the manufacturing tolerances involved. But if Archimedes had the
resources...

*



Thanks. I didn't see that. Just another example of my sloppy research habits. As Pa Kettle once remarked, "gonna hafta fix that, one day..." laugh.gif


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Arthur, Gwen, and Quoth...Onwards to 4000 posts!Quoth is Cath's noob - what was she thinking?:)Duckflaps!Watch out for low flying kittens!'Dance, Monkey, Dance!' Well, this monkey don't dance no more!Never say 'die'... except as a command! I adopted Insaneperc!What kind of fool do you take me for? I don't know. How many kinds are there?
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arachnidoc17
post Apr 5 2005, 11:03 PM
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Well, read HIS take on the Mythbusters episode, he said they probably didn't do it accurately enough, because it is possible, yet the farther away the focal point the harder it is to focus it.


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