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#1
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12-09-2012, 10:44 AM
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 My Rank: MAJOR Poster Rank:12 Join Date: Jun 2009 Posts: 93,128
Contributions: 226
Mentioned: 91 Post(s) Quoted: 2009 Post(s)
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Burning Stuff with Solar Power
This 4 foot magnifying lens melts concrete, and everything else in it's way. |
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#4
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12-11-2012, 11:38 AM
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| My Rank: PRIVATE Poster Rank:5955 Join Date: Jun 2009 Posts: 39 Mentioned: 0 Post(s) Quoted: 0 Post(s)
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Re: Burning Stuff with Solar Power
yes it is called a Fresnel lens, you can find them in old rear projection tvs and you can easily make viable green energy water heaters and stoves with these lenses! good vid  |
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#6
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01-01-2013, 01:36 PM
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 idiot savant with a ban stick Poster Rank:25 Join Date: Oct 2006 Posts: 54,359
Contributions: 29
Mentioned: 64 Post(s) Quoted: 240 Post(s)
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Re: Burning Stuff with Solar Power
__________________ "Knowledge is often mistaken for intelligence. This is like mistaking a cup of milk for a cow" |
