Melting Cans with the Sun Solar Fresnel Lens Solar Death Ray

[ephemere82]

could it be used to melt metals and store them better? i mean iron or Alu cans...

[YouTheory]

Lol Denise .. she should be in da show

[Bertziethegreat]

If you're melting soda cans, mash em down really good, then put a heavier chunk of aluminum on top of em to melt first.

[DigiParadise]

Don't let your cat go near that...

[CrapPolice]

Dan you're making your viewers go blind!!!!!

[ThePJpatch]

I liked it when Denise passed by in the lens, she is walking up side down.

keep up the good work.

[SunsetRC]

Have you ever accidentally got your hand or arm underneath that thing?

[idan4411]

you can use this to make an aluminum smelter and cast your own aluminum parts!

BTW Hi Denise! we see you! LOL

[gulfside2000]

Be careful when melting anything zinc or getting galvanized steel hot enough to vaporize the zinc in the galvanizing.  A while back, I think I got some zinc in with my aluminum while melting and casting aluminum for some projects. Zinc has a lower melting and vapor point than aluminum. I felt bad for quite a while from whatever it was.

[magna59]

Great vidi,melting points & more pure metals becomes difficult to work with & aluminium (Melting Point 1220 F) is very happy to oxodise. I've done some work with lead (MP 621 F), but equally a material that has a very defined melting point, but is happy to be a liquid metal, without the aluminium thurst to be an oxide. Plumbers solder (MP 365/491F) is good, because it has a very wide 'melting' point 'cos it's an amalgum of metals, and will behave like a paste, a mixture of solid & liquid.

[hawaiidoves]

WOW

[Shaunt1]

That's a powerful lens!

[pkrska]

It's not melting.... it's disintegrating. Is there a way to make it go through a process to adjust the heat?

[GREENPOWERSCIENCE]

@pkrska The focal length. By moving the target closer, you work in a wider pattern and while the overall power is the same, your max temp drops over a larger area. For larger amounts of cans, a focal pattern of 4" would be about right for this lens.

[myklpen]

@GREENPOWERSCIENCE : The can is not melting the Aluminium is oxidizing, that it burning, though not hot enough to maintain an flame...

[Macho570]

4:16 creepy woman

[10gigabit]

Dan, can you re-focus the output light beam from the fresnel lens by using a magnifing glass to attain a tighter beam?

[GREENPOWERSCIENCE]

@10gigabit

PSYCHIC!! i just got some optically pure magnifying glasses. One of our next videos. The results are not as good as expected. Regular curved glass can shatter.

[callmeshane303]

@10gigabit

You actually need a concave lense as the convex lense's disperse the concentrating beam.

These "reverse" expanding lenses are a little rare - not impossible to get but almost no one ever uses them, except in specialist optics like multi layer lenses, special telescopes etc.

[crackin2000]

you should give her a lab coat and clip board and have her in the background all the time

[patrick258181]

I saw a video of a Fresnel lens melting a stack of pennies. I want to build one. Thats amazing.

[GODF1ESH]

GREENPOWERSCIENCE... Ever think about using a Fresnel Lens for water purification? Some kind of pressure cooker setup with drilled and soldered copper tubing venting the steam into a coil and dispensing into a condenser container?

[liveuk]

@GODF1ESH I've been working on this for 3 years to get a portable and nearly finished

[madogblue]

do you wear welding goggles when doing this?

[GREENPOWERSCIENCE]

@madogblue Yes, they are required if you stare longer than 5 seconds.

[MrKanki77]

Denise The Creeper LOL!

[Prontest]

Aluminum is highly reactive need to keep oxygen away if possible would lead to much better results

[starlite2991]

wow neat and cool! Your outtakes are cool. Keep em coming. Where do i find a lens like that?

[helloman1976]

Make some steam, turn the wheel, make some power! WOO HOO! The problem is, how do you "focus" the beam automatically?

Hey, at least you have a nice kiln there! Maybe you can cast those cans into something more useful?

[kurnano]

OK, so this shows the power of Fresnel lens, but as You said, aluminium mostly burns. Can You show how to actually melt aluminium with solar lens? Maybe show how to turn few cans into small aluminum bar? That would be cool.

[einstyndotcom]

do you show how to make that lens? or do you sell them or both? this is a great tool to keep around when the economy crashes. by the way Dan, what state are you in?

[blakeinkzoo]

It doesn't melt and drip down does it? It actually vaporizes doesn't it? Amazing!

[88Kamikaze69]

I wonder how well this could be applied to say melting a path from a cabin to an outhouse and the likes with some motors, a remote control and the right angles...

If I had the finances needed I'd build a "mad scientists laboratory" out in the woods and huge fresnel lenses and steam engines would deffinately be involved ^^

[lo9765]

put your hand on the focus point :D

[nononsenseinrational]

That video just resolved the problem i had with the design of my stirling(could'nt get enough heat and the parabolic mirror is hard to make and also loose a lot)! So much heat, I anticipate a 300% plus increase in output! I am going to kill my old TV (or maybe some other TV)...Thank for the video, very impressive. Have you try boiling water?

[PigeonTech]

Imagine if someone got lucky and discovered simple technology like this a few thousand years early. Maybe we'd be ahead today in everything else. I'm wondering if there's a primitive way to make these lenses. We might need them in our post-apocalyptic future.

[nononsenseinrational]

@PigeonTech Scavanging TVs ( the inner layer of projection screen)

[Cimlite]

That's incredibility impressive... and a little scary. Wouldn't it be very easy to damage your eyes with one of those?

[a1579]

How hot does it really get? Could you make glass with this? 1500, 1700 °C?

[Hamstray]

@a1579 lookup solar sinter by markus kayser

[hobomnky]

lol most random use of the word dissolve

[mbaharvard]

I dunno, I like like this geeky stuff. Thanks, Dan!

Keep it coming. The outtakes continue to be cool, as well.

Still, I remain impressed.

[Naedyn]

awesome stuff!

[AdeptAlbatross]

The title alone is enough reason to like this video.

[Thewizzardof9]

Excellent, the bloopers were a good touch.

[Animeabe]

what about a glass bottle?

[eggsandbacon4me]

Rainbow fire!

[sharpezor]

Wonder if you could get a big prism, if it would just make a giant intense rainbow or just burn the prism.

[iamzid]

i consider these lenses to be more of a novelty at this point. their uses are extremely limited, you cant just walk away and expect them to continue heating in a uniform manner. as the sun moves so does the angle of the focal point thus requiring constant monitoring, you would have to turn the lens and more the target constantly.

[HARMANHOUSE1]

New show! Will It Burn?

[ricochetVendetta]

replace all your windows with one of those for a nice super heated house, mmm

[mlim23]

How much are one of those lens?

[TinyDav]

Am quite undecided between the lens and the parabolic mirror to power a stirling engine. Can you enlighten me on the difference please? :D thx P.S Do you ship wolrdwide?

[airboy90]

Great but how would this idea be developed for use in industrial smelting plants to cut back on the use of electricity?

[TheSunergizer]

I'm thinking people are asking so they can melt aluminum down for recycling money.

[segrum]

How would you melt gold off old motherboards, Dan?

[mandojb]

Freakin Awesome !!!

[88roro11]

melt a keg :P

[Stormrunner0002]

What would be the strongest metal I could throw an emergency spot weld in or would this be better in a smelting pot arrangement.

[OneEyedCyberchicken]

impressive Dan, cannot wait to see what you do with it in the BIG picture.. heat water pipes to run a steam turbine purhaps?..

[PhantomCaptin]

making one just to burn a hole through my friends car

[PhantomCaptin]

making one just to burn a hole through my friend's car

[AndWeJustGoMoo]

Why is everyone accused of being a "fag" on youtube? Is it like the biggest insult in cyberspace is to be accused of being a ‘cybergay’? "Yeah! I don't agree with you so you must therefore be a nameless, faceless and undesirable gay person in real life! Feel the wrath of my one-word insult you heathen!!!"

Man, thanks internet. We sure have come a long way from them trees.

[Anothercoilgun]

Denise - "Oh hell he's at it again".

[5T34LTHcamoT4NK]

would i burn my self putting my hands under there? ;)

[paulosemifusa]

Amazing

[SecularMentat]

How useful are the Fresnel lenses for heating water so you can make a generator? Their focal point seem like it wouldn't be as useful for a pipe heater.

The Parabolic mirror thing seems more useful for that.

[spooky1000]

make some popcorn on that lens

[owen402005]

Awesome a death ray :D I love it when stuff from science-fiction becomes real science.

[robertwgardner]

Skeeter incubator back there!

[Winst0nOBoogie]

I've melted a copper penny with a lens Dan Sold me,

1000+ deg C!!

[imau2ber]

And what if we live in the North?

[GREENPOWERSCIENCE]

@imau2ber A clear sunny sky is all that matters. Ambient temperatures only affects heat leaching. Since this is well above the needed temperature, this will work in the snow:-) A crucible is needed for volume melting.

[davidlightsnack]

That would be pretty cool if you could melt a bunch of the cans into a big ingot

[FrankaDith]

Hey Dan with all your know how you should make somethin that works on a permanent basis ,you never finish anything.

[abadonisec]

intead play with that u should create energy

[homertalk]

Can you buy a crucible and melt silver?

[M4sk3dC4sp3r]

in the cc the birds are saying IT'S LAWL

[TheBetterGame]

Have you been working out? Your chest and shoulders look bigger.

[GREENPOWERSCIENCE]

@TheBetterGame :-) Yes, thank you for noticing.

[einstyndotcom]

@GREENPOWERSCIENCE

alright quit modeling your bod and stick with the science! I dont know why you find it necessary to do that.

[imatelly]

i melted a penny,and a nickle

[P0wl3h]

drop those gloves and take the bull by the horns.

[onekeypianoplayer]

i hate spiders and webing, give us a clean video

[AngelLestat2]

You need to do make a video about fresnel lens vs parabolic mirrows vs lens.

I dont know yet what are they pros and cons.

PD: Lol denise :)

[Angelsigns2012]

I like the bloopers.

[Mrcaffinebean]

Holy hell thanks amazing!

[Mrcaffinebean]

@Mrcaffinebean That's*

[therealandycook]

Isn't that toxic Dan? You should know this.

[galegregory97comcast]

LOL

[galegregory97comcast]

THAT WAS HOT LOL

[jsJavaScript]

 Dan Rojas Destroyer of Cans

Be afraid, be very afraid...

[shartne]

Have been burned by the Fresnel lens yet?

[Vwatcher12]

Lady in the back just creepin'

Still cool video thoe :]

[Ryoka242]

you can see your wife creeping in the woods out back.

[razorback0z]

Fag ? what the ? Explain ?

[Knight3191]

MAGNET VIDEO? awwww blarg.....

[Nat25251]

I wanna put my hand under there :P

[Gatorsrok]

@Nat25251 fag...

[CCSinventions]

@Gatorsrok he is not a bundle of sticks

[purplemutantas]

@CCSinventions A faggot is a bundle of sticks. Fag is British slang for a cigarette. Speaking of fags, time for me to go suck on one :P

[CCSinventions]

@purplemutantas ur gay ._. lol jk XD

[purplemutantas]

@CCSinventions Depending on how you define gay, I may or may not be gay. But I am queer :P

[CCSinventions]

@purplemutantas so your happy lol but the queer part idk about XD

[dieselwarriordotcom]

@Nat25251

I know its wrong, but me too!

[ku42]

:0