Home Power Videos

25 Responses to “FRESNEL LENS BOIL WATER WITH SOLAR POWER”

1. shamwowwow says:

   December 23, 2009 at 2:16 am

   No, the rocks are just there so he’ll have a non-flammable surface for the demonstration. Just common sense.
2. shamwowwow says:

   December 25, 2009 at 2:08 am

   sucks, he didn’t even show the fresnel lens.
3. filosofyphreak says:

   December 25, 2009 at 12:44 pm

   he did not preheat or anything. this is legit for sure. its a freaking huge fresnel lens ppl of course it heats that fast lol
4. badsaddamdotnet says:

   December 25, 2009 at 9:18 pm

   i have done this. it did heat up to boil but not that quick not even close.
5. 721787 says:

   December 26, 2009 at 1:13 pm

   did u just fast forward the video?
6. felixthemaster1 says:

   December 27, 2009 at 5:52 pm

   this video got featured?
7. leonkillr says:

   December 29, 2009 at 9:47 pm

   so how many of those till i can make a cup noodles?
8. LizzyAston says:

   January 2, 2010 at 5:05 am

   could have been heated to begin with

   FUCK SHIT
9. ductonius says:

   January 4, 2010 at 8:41 pm

   It’s difficult to explain in a small number of words. The Wikipedia article “fresnel lens” explains it well.

   A short answer is: Fresnel lens’ have curved bits, but they also have bits that are supposed to be flat. If the flat bits end up bent they don’t work very well.
10. viva0la0utube says:

    January 7, 2010 at 12:00 pm

    they hav to be bent or else how does it magnify??
11. doktorfuture says:

    January 9, 2010 at 1:29 am

    water looked to be warm already. it started smoking sort of before, or right when, he put it under the light.
12. laudiumWP says:

    January 12, 2010 at 1:08 am

    Does the heated rock underneath the water kinda add some heat? Maybe?
13. solidfreez1 says:

    January 13, 2010 at 12:34 pm

    My comment was meant to inform others who may have read your comment. Also, you never bothered to claim you were a lighting guy. As a media professional, I sincerely hope I never end up working with you, whoever you are.
14. bokabeed says:

    January 15, 2010 at 11:18 pm

    Is this really a science lesson? Did anyone here NOT already know that you could do this with any kind of magnifying lens?
15. bokabeed says:

    January 17, 2010 at 3:59 pm

    Wow, really? No shit dude, I read his comment wrong obviously. Do you really think if a was a lighting guy, I wouldn’t know all of this bullshit you have written here??? You really did not need to go through the process of writing all of that.
16. solidfreez1 says:

    January 18, 2010 at 5:32 pm

    Fresnel stage lights are so named because they employ a fresnel lens. These lenses are used in other applications as well, including projection systems, other lighting systems, and solar systems. This video isn’t demonstrating a stage light, it is showing the effects of focusing the sun through a large fresnel lens.
17. tommytowne says:

    January 22, 2010 at 4:35 am

    Room temperature is my favorite temperature!!!
18. ductonius says:

    January 25, 2010 at 5:16 am

    You can get cheap Fresnel lenses at virtually any office supply store (Staples/Office Depot has them). They’re called ‘full page magnifiers’ or something like that. They’re used for reading. The only problem is many times they come slightly bent, but not always, so check them every so often and you’ll find flat ones.

    If you have more money, you can buy replacement fresnel lenses for overhead projectors or big-screen TVs.
19. bokabeed says:

    January 26, 2010 at 5:27 pm

    A fresnel is a stage light, they aren’t cheap, and they are special kinds of lights, so you can’t just go pick one up.
20. braiden218 says:

    January 28, 2010 at 11:59 am

    so, where can u get one of these fresnel lenses?
21. Captain42x says:

    January 29, 2010 at 3:00 pm

    That is really neat… but was the water at room temperature before you applied the lens?
22. RamoneTalarico says:

    January 30, 2010 at 9:23 am

    FAKE!
    KIDDING!!!

    great vid, i would love to get one of those lenses
23. mexicanerd says:

    January 31, 2010 at 4:05 pm

    WITCHCRAFT I SAY!
24. ruiferreira89 says:

    February 2, 2010 at 11:14 am

    Unless you might need them for food. There’s no problem if you use resources responsibly.
25. IdleGod says:

    February 2, 2010 at 7:16 pm

    Wow, you have discovered lenses! Now maybe we can use them to magnify small objects, or correct human vision!