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I finally Got a fire started with a magnifying glass!
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03-05-2006, 11:25 PM
Very happy.
As a last attempt before I took it in, I folded up a black piece of construction paper several times, and got the glass focused. After maybe a minute or two, it burst into flame. Thanks.
03-05-2006, 11:34 PM
What you need NOW is a great big Fresnel Lens..
Gotta start thinking BIG! 
03-05-2006, 11:45 PM
Don't worry - we'll tell them you were here the whole time .... they can't pin anything on you
03-06-2006, 12:32 AM
I have a 28cm^2 Fresnel Lense that I purchased from Edmond Scientific for about $3. It is extremely dangerous. I almost melted a penny with it. I cracked concrete, melted asphalt. You have to be really careful when handling it outdoors because you can accidentally create a severe burn in senconds. I wanted to pair it with a Stirling engine to make a generator, but then I read about a guy that has already secured VC to build a generating station in CA to do the same thing.
http://scientificsonline.com/product.asp?cs=p&pn=3070877
03-06-2006, 01:04 AM
Find a broken overhead projector at your school, open it up and look just below the glass writing surface. One screw or even one snap will release a 12 x 12 fresnel lens. These work great for starting fires...as someone said above, extremely hazardous.
03-06-2006, 01:10 AM
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