February 21, 2009
FRESNEL LENS BOIL WATER WITH SOLAR POWER
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Comments on FRESNEL LENS BOIL WATER WITH SOLAR POWER »
That is really neat… but was the water at room temperature before you applied the lens?
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FAKE!
KIDDING!!!
great vid, i would love to get one of those lenses
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WITCHCRAFT I SAY!
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Unless you might need them for food. There's no problem if you use resources responsibly.
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Wow, you have discovered lenses! Now maybe we can use them to magnify small objects, or correct human vision!
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30" x 40"
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What were the dimensions of the lens used in the video?
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WITH GREAT POWER COMES GREATER RESPONSIBILITY:-)
If it made you more compassionate as an adult, the frog served a good and honorable purpose. I went fishing at age 10, lake at an apartment complex in northern Virginia. We caught 3 catfish, put them in a bucket then decided to take them back to our camper. We thought they were dead and dumped them in a field. The next day they were still breathing. We took them back to the lake, too late. On the rare occasion I now go fishing I release ALL:-)
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It only took me 1 minute to kill a penny frog with a magnifying glass when I was 5. I still feel guilty today for killing that poor froggy, but I invented a solar laser. Sun + magnifying glass = heat laser(and dead frog) mixed tears of joy and sorrow.
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Nice video, as a solarman, and hiker/camper you need to get this out to the MSR and OR guys. This is a great idea for low impact camping. Less fuel to carry, no burning wood, and light weight. Truly a Low Impact Camping device.
Thanks, Tony W-B, PA
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To all the negative posters *** Do you work directly for the oil companies or what . Maybe you have no clue as to how things work with no knowledge of construction , tools or common sense. Get this guys ,If he can boil water with a small lens that quickly, what could YOU do with a larger lens over time. See ohhhhhhhh Now you get it. People that would post negative comments about green energy are usually the same people I charge
100.00 dolars to reset a breaker. Stupid.
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wow ud make a good camper or cave man
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Brilliant!
Fresnel lens technology could be very important in Mars exploration and settlement – for both smelting metals/ceramic ores and for thermoelectric power perhaps (although simple reflector panel may be more effective).
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i go one last week at OfficeMax $8
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Not a chance:-0 I picked up a shiny stainless steel bowl that was exposed for 20 seconds and got a 2 inch long x 1/8" wide blister. Looked like someone drew a line on my index finger. I thought it would not be hot as the far rim was all that was exposed and being reflective. ouch
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i dare you to put your hand under it for 1 minute
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WTF would you do with a quarter cup of water?
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My opinion might be #5 lens brazing goggles?
thanks, that was really awesome!
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You cannot get exposed long enough as it would zap you. Skin damage is progressive from years of exposure or a very bad sunburn. This is a heat burn, even though it is from the sun, it is different. Eye protection is for the brightness damage. UV damage is not a risk because you are not in the direct path of the reflected light. Thank you for the comment. I usually cover completely up because of standing in the sun all day long. Sun block is a good idea and gogles for the light.
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Fantastic stuff. 1) Does this damage your eyes? 2) And does it give you an increased risk to skin cancer (say if you were to very (very) briefly expose your skin to it?
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You heat the metal, not the magnet.
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Hi,
Tested the Neodymium in a Fresnel. They loose their magnetic properties after 15 seconds an recover slightly when cooled. They are MUCH WEAKER about 90%. The heat seems to cause permanent damage. They end up about as strong an old school magnet.
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Wouldn't be much of a bath.
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Just read this very interesting fact :
"…the ferromagnetic properties of a material can change for temperatures well below the Curie temperature. Neodymium magnets, for example, begin to lose their magnetization at temperatures as low as 300 F."
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