FRESNEL LENS 1 SUN COLLECTOR VINTAGE GREENPOWERSCIENCE

[OJA23122011]

Cool never thought its that strong

[dragoonroc2]

that was awsome!!!!!!!!!!!!!!!!!!!!!!!!­!!!!!

[LoverOfTheFur]

holly sh** if you used a system of lenses and mirrors you could have a sun powerd lazer! Take that MythBusters, you and your shitty mirrors.

[03Wale]

@LoverOfTheFur Mythbusters built it according to the myth and specs

[leonardo1480]

if you had a parabolic shaped clay dish you could make your own lens by melting the glass into it

[CsAnnihilationII]

i would love to burn those ants with these

[pigpal2]

where do you get a fresnel lense that big?

[GREENPOWERSCIENCE]

@pigpal2 check our website:-)

[luisaestrada007]

@GREENPOWERSCIENCE hello mr rojas my name is luis i was wondering if you could heat a 10 galon water to 197dg in a beer keg

[luisaestrada007]

@GREENPOWERSCIENCE 

[luisaestrada007]

@GREENPOWERSCIENCE mr rojas i was wondering can you heat up a 15gl beer keg with the lense

to 197ferenheit

[DrBarberXlover]

@pigpal2  televisions

[pigpal2]

@DrBarberXlover really it took 2 months to respond to my comment -_- not impressed

[DrBarberXlover]

@pigpal2 Gay Fag.

[pigpal2]

@DrBarberXlover do you know that fag means gay?

i bet you didnt because if you did then you would know you were actually calling my gay gay which is a double negative therefore making you call me not gay. :) so have a nice day and use the new info well!

[DrBarberXlover]

@pigpal2 Thats double fag. Double gay. Pobrecito. Thats spanish white boy. I didnt even make the video i just saw your cooment and replied. GAY FAG!= GAY GAY. FAG FAG.

[MistaJayRock]

@pigpal2

GPS website or take them out of the screens of old (1990's) rear projection screen televisions (Hitachi, Mitsubishi, Toshiba, etc) The better spot lenses come from non-HD analog projection models. "Free Energy" does not have to be expensive. :)

[Films4You]

OK but can it make electric? or heat=steam=electric?

[wolfsledgend]

i got an a4 one of these 4mm thick and i melted some small red rocks in my backyard.

[piespokladowy]

Super power!

[Europe85]

Standard Oil who is Rockefeller has been screwing this country and the World for that matter for 100 yrs. Nickola Tesela and all the other backyard inventors have been squeezed and shut up for years, just watch the movie "Chain Reaction".

[gfyfe6]

dude that glass is jacked up on the roids lol thats fucking hard core.

[Jdlifsey]

This should work well in boiling creek water to purify the water. Could the lens boil a gallon of water? How long would it take to get the water boiling? Could it boil water for 3-5 minutes with much trouble?

[willeyboy2]

if you point the little burning spot at a prism. you can make a invicible burning laser

[Oheeeoh]

Shame to ruin a perfectly good beer. :(

[ductape95]

those greedy bastards at the top of the oil companies are just too greedy to change the way we get our electricity. It makes me sad :(

[halfdomeat420]

at5:40 it says he tries to breath the fumes !!!hope he fixes it b4 some dummy takes it literaly.its a typo

[Cyberdactyl]

Happy anniversary!

Still waiting on the contraption where you said you were going to put the focus point of both a Fresnel and a reflector on the same spot. ;-)

[edy066]

man thats cool, its a shame you only get 12 hours to play with it

[freakin1random]

waste of perfectly good beer..... T.T

[oc5nsli341nforce4]

Cool I just got a smart idea how to generate power using one of these and a TEC block along with a old heatsink. To use a TEC block to generate power on side must be hot while the other is cool.

[porkypinekiwi]

wait so i can get one of these out of an old projector tv?

[feches13]

woouhhh!!!!

GOOD!!!

[RCROX5000]

Judging by this, it shouldn't be hard for us to make powerful laser based weapons.

[damasta67420]

we alredy have one, it can melt rockets out of the sky. also if we were to use something to magnify the laser beam, a fresnel lens wouldn't be the right choice, it would just refract into multiple beams

[AManOfHope]

Are you talking about HAARP?

[museumoftechno]

The whole point of lasers is that they're coherent light: photons moving in the same direction. The only thing you can possibly do to them with a lens is to spread them out, making them less concentrated than they would be without the lens.

[KrazyKuul111]

that is so cool

i want one to burn ant mounds

[cdctemplar]

i wanna smoke weed with this. sun powered vape = ossum

[tmomof6]

@cdctemplar, but then if your freind who's smoking with you moves the lens the wrong way :( POOF sun powered vapor hole in your eye & into your brain = dead Opossum! = not so ossum! roflmao

[QwidgyboMan]

I cannot believe so many people who use this methodology, which is brilliant I must say, without extreme safety measures at and around the focal point. Would you walk so casually around or stand next to a beam of fire that you could see? I hardly think so. Guys be really careful. I've seen the guy in the video walk right in front of a parabolic dish and burn the side of his head. This shit is dangerous and not a toy IMHO.

[madjimms]

Its only dangerous if you don't know what your doing, plus you can very safely pass through the beam if you do it quickly.

[AutoteckO8]

You need a adjustable table like a table saw for a precise focal point.

[SthealthRaider]

OHNOES! SMOKIN CONCRETE

[saleens3514me]

sounds like someone lives next to an army base

[Mifodiy35]

Sounds like someone lives in Israel :D

[pgm98387]

That would enhance a solar cook oven.

[sockosockosocko]

note to self: don't ask dan to watch your beer

[InfinitiveNothing]

hmm what if you had a bunch of these aligned at the focal point of each magnification? imagine the power! MUAHAHAHAHA! :P

[Zvesda]

The Death Star would happen o.o

[Elvarks]

I can't see why these aren't used large scale for power plants and stuff

[Jakalwarrior]

@Elvarks

They use a similar principle in some except with mirrors, same principle though. All of the mirrors focus on a water tower in the middle of a field of mirrors causing the water inside to boil and generate steam energy. The reason they aren't more widespread is they only work well in cloudless areas and don't make 24/7 consistent power so at best they can only be a supplement.

[shorty40merza]

@Elvarks because they are large they bring the power from a large area and concentrate it in one small area thats why you get high temperatures

[Ir0nF1st924]

@Elvarks IKR!!!!! use this to melt metal and plastic, not coal

[vampov]

@Elvarks they are....the mirrors aim the light up concentrated up at the boiler

[sargeantneo1]

wow, is this real, can a lense actually do that, that fast?

if it was focussed enough onto one tiney point, and it was a really really sunny day, could it act like a cutting laser?

[fibiger12]

it cant make that small a dot i think, but yes these lenses can melt glass and copper coins etc.

[EASTWOODO4]

3 or 4 lenses.small steal boiler.steam engine.generator.whats the hold up?

[ketanovas]

can i melt someone's face with it?

[keyofdavid88]

how much do you want for that particular piece of art?

[GREENPOWERSCIENCE]

The Glass art?

[keyofdavid88]

lol yea - I was kidding XD

[keyofdavid88]

happy anniversary!! You've taught me A LOT and I plan on buying some of your lens in the future. XD

Keep up the great work you guys

[GREENPOWERSCIENCE]

:-) THANK YOU!!!!!!!!!!!

[belairhotrod]

I see you wearing safety goggles? why is that?

[tainterlakeisgreen]

Because of how incredibly bright it is. It's like looking into a welding arc with how much light is being reflected

[ncbookz]

make a fresnel lense bent the shape of the sun path so the sunlight hits on one ppoint allday no need to move the platform

[tommytowne]

bend the lens?

[ncbookz]

yes shape the lens according to the path of the sun during the day so it always points to the same location

the lens would have to be expensive i am sure but it could be done shape the lens for each degree the sun moves during the day to point to a specific point

[tz496]

it would be more effective to control the lenses angles, as i bet such a lens if it can already be made will somehow be less efficient. but who knows yet :)

[ThisIsMySockAccount]

You guys have some of the coolest toys .. I wanna come over and play in your yard

:oP

[moss1transcendant]

hey i just found your ebay shop thats great, i have been thinking about running hydrgen cell on a little 4 stroke 20/30cc engine to run a dyno but cant find a little engine like that there all 2 stroke.

[pixuma]

honda gx25

[moss1transcendant]

wow thank you..

[Thornpajaros]

nice video, anyway thanks for hitting my channel more than one million times guys!!

[timerider4]

You can buy giant fresnel lenses from American Science and Surplus.

[giagiopi]

mmmmmm.....anyone want a beer?

[bringthedrifting]

"I try to to breathe the vapors I use a respiration mask"

How many brain cells have you lost using this lens?

[slowman223]

where did u get that FRESNEL LENS

[narcovice]

wow can mold glass into many marbles wonder if can melt sand into glass like they said

[timetraveler3797]

The sun can do that? Well, then I'm furhter on my way to making a ray gun.

[GREENPOWERSCIENCE]

:-)

[Procrastinatathor]

Would further glass optics placed at a strategic area near the focal point refine the focal point enough to something really sharp? Because the focal point is more or less precise using a Fresnel lens, as far as I know (correct me if I'm wrong).

[Procrastinatathor]

It had to be beer heh? :P

[clackmas123]

Mr. Zonky IBEW member here, What power factor do you get from standaed transmission lines at this time ? You know , a little thing called voltage drop? When you look at nuclear vs sun energy don' forget solar is transmitted for free with 0 waste. Nuclear must be generated then transmitted at a loss and the waste must be dealt with by burning of fossil fuel (trucking it out). Solar is point source power that must be further enginered. For 3rd world countries with no grid,she goin work.

[zonky85]

Thermodynamics shows there is a difference between heat and temperature. Focusing the sun only concentrates the light energy in one place, giving the high temperature shown. Unfortunately, there is only a certain amount of power available per ft^2. See how the bubbles form only on a small area only on the inside surface... Theres only enough heat to boil that much beer.

You would need a very large, expensive, and probably very fragile collector to power a city. Nuclear is the way to go.

[solar02130]

There is generally about 1000 watts per square meter available from the sun for a number of hours per day.

You sure are a pessimist. You somehow conclude that nuclear is the way to go, from a video of fresnel lens destruction...

I believe that solar power will be harvested in a cost-effective way very soon. So many great engineers are working on the solutions.

[zonky85]

So you know, I'll be graduating from ASU as a mechanical engineer in May 2009.

You're right theres one kilowatt, max. Then factor in the efficiency of any device you use to make that energy useful. Thermal efficiency of any steam power cycle is about 50%. 500W=~1.5 computers

Photo voltaics are just as inefficient, and more expensive to produce. I'm just saying theres no magical solution here.

Drill, build nuclear plants as the tech is developed, then go "green."

Is it pessimism or realism.

[jpourkav]

actually there is 1366 watts per meter squared :)

[sorrorn]

Instead of loosing your time burning random stuff, why don't you arrange the magnifying glass in someway to boil salt or dirty water to generate electric through the steam and at the same time condense the water vapor in to clean water.

[GREENPOWERSCIENCE]

Check out my other videos, there are 8 covering the topics you mentioned.

[shredmaster999]

the glass is like a melted chocolate hehe

[peachypan]

yah know, as a child I had heard that you could burn and kill ants with a magnifying glass... i really didnt think that you could but apparently the results don't lie

I want some more specifics, like locations, weather conditions, blah blah blah and ofcourse, place to buy one of these :D

[ChemicalMikeUK]

would be cool to harvest the heat energy and get electricity from it. or even heat water and make a steam engine. clean and green! *****

[honeycooler]

gotta get me one of them. oh the fun to be had.

[nativeops]

it's be sweet if you could focus it to a smaller point, or even through a fiber optic cable and point it like a laser.

[adventurerules]

Tks for the videos! Where can I buy the large fresnel lens and what is the reflective self adhesive film you stick on the inside of trough collectors?

[tiabin]

How big was the fresnel lens on here? And where can you buy one at?

[mrsaturn42]

Fresnel lens blocks out certain portions(zones) of a light wave that would be out of phase with other parts and cause destructive interference and therefore lower the intensity. When you block those parts out with a fresnel lens you are left with a bunch of in phase light waves which constructively interfere to make a very powerful beam.

Awesome stuff. Look it up on wiki.

[mrsaturn42]

You can also use the same principle to amplify sound.

The zones would be much larger though.

[cosmanthony21]

Why does the lense itself not burn?

[GREENPOWERSCIENCE]

It concentrates light, as the light passes through the lens, it is like a glass window.

[mineman200]

there isnt any special light. they are using plain normal sunlight

[o0PinKFisH0o]

7:00 That's cool art! :D

[4shine4]

how thick is the lens and how much does it cost?

[sparky480volts]

Dynamite with a LazerBeam!!!

[babot6]

guaranteed to blow your mind

ANYTIE-IME

[spider2021]

the light would not be the cause of the glass melting, it is the heat the light generates.

[trick187kp]

could you say ... melt through a house window?

[HelioIgnus]

it's likely that it would be extremely difficult to melt clear glass using light, since it lets the light pass through it.

[GREENPOWERSCIENCE]

Yes it is, but I have done it. Clear glass shatters very fast. Any impurities get vaporized and cracks the structure.

[shawbros]

"could you say ... melt through a house window?"

I just said it.

Nothing happened though. :-/

[gelatotoro]

what was the ambient temperature and the radiation density?

[HelioIgnus]

twelve gees and five dollars.

[RollenHeith]

temperature is about 5000-6000C

[masterchief377]

Awesome