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Archemedies claw (Read 6742 times)
Douglas_The_Black
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Re: Archemedies claw
Reply #30 - May 30th, 2005 at 8:08pm
 
im very intrested in this now. i dont think archemedies would have mirrors but what about polished brass or copper? I'm going to give it a shot, any hints you could give me would be helpfull.

Lobo it would be cool to have a light forge Smiley
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Re: Archemedies claw
Reply #31 - May 30th, 2005 at 9:24pm
 
Techstuf, Is that a fresnel lens you are talking about? I love those things 8)  
A quick google search returned this  
http://www-personal.umich.edu/~bclee/lens.html
I've got to get one of those
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Re: Archemedies claw
Reply #32 - May 31st, 2005 at 12:39am
 
Is a light forge where you make light sabers? Smiley
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Douglas_The_Black
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Re: Archemedies claw
Reply #33 - May 31st, 2005 at 8:23am
 
well you could have a real long lightsaber with one of those...hey a light shield or buckler to go with your saber! 8)
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Re: Archemedies claw
Reply #34 - May 31st, 2005 at 11:37am
 
If this mirror trick was used,couldnt it be easily countered by simply reflecting the light back?
Rik
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Douglas_The_Black
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Re: Archemedies claw
Reply #35 - Jun 1st, 2005 at 5:35pm
 
i dont know if they would of thought of that. i think that they would of seen that there sails and clothing where catching on fire say "oh shit" and then run. i know i would of.  Smiley

I a magnafining glass that i use to use to melt those green army men, with. today i broke it out of its storage and was burning other things with it and reflecting it at stuff with a mirror. I burnt my self pretty bad becase i was courious to how quickly it could burn. Trust me when i say it burns quick and hurts bad Smiley

Now that i acctuly cased harm to myself i want to make a verson of this primitve lazer. Should i have a perfectly round and smooth bowl made of brass, with a smaller brass mirror to take the light from the big mirrors and bounce it to places or should i have smaller brass mirrors angeld so that they reflect and bounce the light off of those into a smaller aiming mirror.  ???
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Re: Archemedies claw
Reply #36 - Jun 2nd, 2005 at 1:34am
 
Doug atta boy, masochisim in the name of science!
No idea about your question but I was wondering if we actually know what kind of mirror Archimedes had.
He was supposed to be hundreds of years ahead of most scientists of his time so maybe he had something like we have today. Really have no idea, anyone else know?
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Lionheart
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Re: Archemedies claw
Reply #37 - Jun 2nd, 2005 at 5:10am
 
Maybe this topic should be changed to Archimedes Mirror!
Whilst the foot soldiers would have fled from the 'burning light' at first, when the generals and 'brains' got together surely the would have come up with this?  After all, it wasnt the foot oldiers of Syracause who came up with htis idea, it was Archimedes, it is likely that the Syracausians would have been in equal awe of this weapon, just being glad it wasnt pointed at them!
Rik
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Douglas_The_Black
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Re: Archemedies claw
Reply #38 - Jun 2nd, 2005 at 11:52am
 
i will have to get a picture of where i burned my arm with the magnafying glass. Its pretty cool, and the reason i was thinking brass is: its realitvely cheap and common, it is shiney, and they would of had it back then. It tarnishes real quick and you would think that they would keep there lazer around for future defense, so that there would be some achealogical remaines but who knows.
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Re: Archemedies claw
Reply #39 - Jun 11th, 2005 at 11:37pm
 
I always figured that me and maybe about 30 of my friends could make flat mirrorlike shields, with a small hole, about the size of a quarter, in the upper part of the mirror, then extend a pipe, weld on a BB, like a shot gun sight, and have them stand in a baseball stand pointing at nearby trees or airplanes. I seriously bet you could burn something. ]
About those frehnel lenses, they are awesome. I saw some pictures of that in a book called Gadgets and Gizmos, challenge your inner geek, and a guy used a frehnel lense to burn holes in steel plate, and pennies
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Re: Archemedies claw
Reply #40 - Jun 11th, 2005 at 11:45pm
 
Ever use a signaling mirror? All you need is the hole...

Matthias
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Douglas_The_Black
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Re: Archemedies claw
Reply #41 - Jun 12th, 2005 at 10:32am
 
yes but would a signaling mirror have enough power to burn something. I mean a big signaling mirror.
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Re: Archemedies claw
Reply #42 - Jun 12th, 2005 at 1:16pm
 
Quote:
...They did the usual stupid 'only three days to make it in ' thing to try and add some spurious excitement. ...

I'm REALLY tired of that too!
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Matthias
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Re: Archemedies claw
Reply #43 - Jun 12th, 2005 at 3:23pm
 
Quote:
yes but would a signaling mirror have enough power to burn something. I mean a big signaling mirror.


Right if you had enough mirrors. I was talking about Hellfire's idea about making a complicated sighting arrangement...

Quote:
...make flat mirrorlike shields, with a small hole, about the size of a quarter, in the upper part of the mirror, then extend a pipe, weld on a BB, like a shot gun sight...


It is a piece of cake to hit an ship/airplane with the reflected spot of a mirror using the "hole" method. That is what a signaling mirror is for!

Using flat mirrors, the temperature that you'll be able to hit is basically a function of the number of mirrors you have. Unless you can bend/focus the reflector, the size of the mirror affects the size of the spot.

Matthias
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Hellfire
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Re: Archemedies claw
Reply #44 - Jun 12th, 2005 at 5:12pm
 
I'm right- it was a good idea.

It would basically look like a cross between a riot shield and a shotgun.
so long as all of my 30 friends were pointing at the same thing
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