SOLAR WATER LENS AQUA LENS GIANT MAGNIFYING GLASS Developing Nation Solar Cooking

[Sonuchka4]

Very neat! You say it only works with the sun directly overhead...what if you put a mirror on top so that sunrays at an angle were directed straight down towards the parabolic water pool?

[Ensensu2]

Oh and the tinder bundle I used was palm tree fiber shaped like a bird's nest 

[Ensensu2]

I actually have not had success with using a magnifying glass to start a fire making a coal is easy blowing it into fire is harder than it looks anyone want to give pointers?

What I used: 4 and 1/2 inch (11.25 centimeters according to my calculator) wide magnifying glass on bamboo (what I think is bamboo there is a patch growing near my house and is quite hardy)

[kimokiko88]

The greatest !

[OKMUNWURX]

The lens stretched out more than it thickened and so increased the Fl

[snowypetrel]

9:15 It's the government.

[ProtestantsRUs]

Thanks Dan, I found this video to be fascinating. Loved it!

[craigwg]

Sweet. Next time I am stranded in the forrest I am DEFINITLEY building one of these. All I need is 20 pounds of lumber, a hammer, 4 inch screws and some wood glue and clamps. Construct the scaffold like above, then, using an air compressor and staple gun, apply a 5'x5' sheet of plastic. Next use the hose to spray 3 gallons of water on top. You'll have a blazing (luke warm) ray of light that can warm marshmallows. Sure to see you through survival in the dense Floridian outback.

[PuciferSam]

@craigwg I think you are the reason Dan made this video.

watch?v=SNVIAvdt-xM

I'm not sure if you were trolling or not but your comment sure seems like you are trying. By the way, Dan's channel is about doing GREEN projects not survival or bushcraft. I thought I should point that out to you.

[Nitrolord1]

Hey u know that u can boil the water rite in the bottel over an open flame or a focesd light point and even draink it afterwords. the bottel will worp a bit but as long as there is water to absorb the heat it will never melt throw but make sure there is water were the heat is being focesd. :)

[infowazz]

i love the part when the waterdrops fall, cool music and cinematography!

[Mak1967]

Dan,

Have you ever come across some sort of clear plastic container that was purpose built to be filled with water and act like a lens?

[FredrikNK]

Somewhere in the middle of a dessert: "OH FUUUCK did you just drink our magnifying glass?!??!?!?"

[mastergrivous]

IT WOULD BE FUNNY IF THE PLASTIC ON TOP OF HIM BROKE AND ALL THE WATTER SPLASHED ON HIM

[wx9dx]

Could you mix Knox Jelitin with the water then put it in the plastic tarp to mold the lens? Then maybe be able to remove the lens?

[truesivad]

Someone get ahold of Vader and tell him the Death Star has returned

[ARohrscheib22]

HEY CHECK OUT MY TALKING DOG! IT SAYS WATER IN SPANISH, WHICH IS "AGUA". SUPER FUNNY :) THANK YOU SO MUCH!

"DOG SAYS WATER IN SPANISH/ TOBY DICE AGUA"

[basketballmonster100]

was that sip staged cuz u loked right at the camera

[0892872841]

Science?

[0892872841]

Science? aha....

[BINGLEBOG1]

Another very interesting video, well done Dan.

[howtoguy17]

CUT SOME TREES????????

[GREENPOWERSCIENCE]

@howtoguy17 Tree Limbs:-) Hurricane season. Oaks need to be trimmed or they can spit in bad places when exposed to wind after long stretches of not being tested by wind. We have 300+ trees, their roots have destroyed property walls, but we just work around them, we do not clear cut:-)

[JSSV]

This is truely the cutting edge of pratting about but even still i'm inspired.

I live in the UK and my girl always complaing that the weather is never good enough to sunbathe so i'm going to build one of these 10x10 foot. see what she thinks of that

[strikerofear]

how long were you standing there with the water bottle?

[munoyung]

I have large scale weather modification in mind. OUCH!

[vatrenikrug]

:D

werry nice experiments :)

maybe soon i make a video in english about my solar oven :) i have made it but in serbian and its on you tube :))

[HAugusto54]

Good Guys...very good... Good Easter...

Good days...tks a lot.

[blompy2]

At 5:30 or 5:40 (when he uses both) put a magnifying glass under the bottle! O.O

[dzihouchan]

I think using a condom filled with water will be better than the waterbottle to start fires, but otherwise, good vid :D

[unclearless]

Bro, you need to move to the Southwest! Phoenix has like 330 days of sunshine a year! It would be like a canyland for you...if you could take the heat. Maybe into the high desert lke I am would be better. Great vid!

~Kevin~

[ForstaSvenskenIRymdn]

what does this have to do with science?

This is simply nature-masturbation

[narcovice]

hey your right i finely cooked my hot dog the right way. never knew you could make a focus point the size of 1 inch it worked dident need a tiny dot now wont burn.

[Shaunt1]

I never realized you could start a fire with a water bottle! Also, that water lens was almost like a weak death ray! Pretty cool stuff!

[ironmanpizza]

@Shaunt1 Way up north the way this can be used is freeze the water , in fact do that twice and make a very powerful lens by puting the flat sides face to face . never did that but it should work wet 'em and stick 'em . I did learn bottles in my SUV full of H20 make smoke ! dont toss those bottles out the can and do start fires on the side of the road . The people that watch this kind of stuff don't litter ! 

[seventhscience]

RE: 2009screwball...All energy concepts should be open source. Keeping ideas secret is not cool and selfish.

[gined13]

Dan,you got a great mind!!!

[ibrahimsoss]

see this project Green Energay every time with Pure batter eneragy on my youtube

[jpmorgan187]

what's the name of the song starting at 0:56

[lodemerisback]

NICE NICE NICE, HEY MR. CAN WE BE FRIENDS

lodemer durango carpina

cebu city

[SpanishConqueror]

Oil is very usefull, we must stop to burn it, and save as much as we can,in the futur we ll need it.

[hootergirlsrhot]

thats pretty funny

starting a fire with water at 5:28

[2009screwball]

Hey I saw one on magnets and I have some ideas. But don't want to share them with everyone yet.

[mistygballmom]

thanks for your video's my son has some projects planned, including one like this.Also, thanks for using termenology I can understand without a science book and crazy conversion formulas to work out!

[bluanvil1]

I did infact burn myself with a bottle of water one day just standing outside talking to someone. I thought at first it was a bee sting but I repeated my position and could clearly see the focal point comming out of the bottle. Good survival info. You could use mirrors to compinsate for the angle of the sun on your scafold! P.S. Dont build this lens on a deck or a dry grass field!!! ;-p

[m28en]

hi whare can i buy this parabolic trough reflector?

thanks

[luftman10]

hi sir i have a little question for you, i made a solar panel of 200 watts , what kind of diodei i need please. all your videos are super thank you

[andylowings]

"A tower that I made to add height to a ladder to cut some trees last year"

Ummm. I`d love to see that, having some knowledge of the forces of static physics !

Andy Civil (Engineer)

[badjester80]

Very cool man. I went out today with a glass measuring bowl and managed to light my cigarette after a few minutes of finding the best focal point. That was about a quart of water in a partially round bowl. again, very cool. Fahrenheit, Celsius, friggin kelvin? Who gives a single rat's turd doogey? Admit it, your just butthurt because you can't think outside the bun, I mean box. Much love pendejo.

[PacoBell]

I really don't get how you can have "science" in your name and still use the Fahrenheit scale. Hey, I'm from the States myself and that's one of the first things we learned in science class back in grade school. It's just not professional. Plus, don't you get annoyed having to deal with those giant numbers? Surely your IR thermometer has a Celsius mode?

[keesgressie]

funny dude you are.....should see me & my dad f...ing around with fresnels and copper pipes to heat up the pool .....lol.

keep it up

[macrumpton]

I suppose if you made a square frame and sealed the joints, adn stretched some aluminized mylar over the front and back you could suck some of the air out from in between and you would get a simple concentrating dish. The focal point would probably not be very sharp, but it would be easy/fast/cheap to make large dishes. With a little extra framing you could even make a huge shallow trough concentrator.

[may7887]

Good video!

Any way, did the cat got BBQed? lol

[thetram156]

beat fail but good job

[Gizzmit]

Ganz Toll, nice short sound also. Long last energy. Gracias!

[dmontoya699]

it's like a death ray...

[unit411]

hats off to you Dan, you're the man !

[scoutthedoggie]

Nice video, I liked the bloopers at the end

[ervans]

Great video Dan, really interesting

[RHEAD100]

You just proved a thieory I have had for a long time.

Not all roadside grass fires are caused by careless smokers. They can be caused by careless nerds that drink bottled water.

[llib90630]

is al gore doing anything about noise pollution?

[RaspWillow]

yup, he actually contributes a great deal towards creating new noise all the time

[phiphers]

niiiaa... whats coocking doc

[hlblade57]

thats cool

[overunitydotcom]

I also hate the planes producing Chemtrails

so all the sky gets so cloudy all the time...

;(

[aerobique]

like your videos!

greetings from gernamy

[callmeshane303]

It's funny how this vid ends with a heap of mascara and make up vids to link too.

I know, lets ask Dan to dress up in womens clothing and make up and everything.

I'm sure he'd come up a treat and Denise could help him out until he gets the hang of it.

[havock89]

Enjoyable as always!

have you tried creating your own solarpanels that are encased in water to increase efficiency?

[debugspray]

Just subscribed to your channel,I am a electronic student in roseville ca, just outside sacramento and been gearing up to make some of your stuff. Thanks

Sean Clawson

[BudsMoKing]

It you really hate clouds so much then i have a video for you!

watch?v=2rW4wPU-UPU

It my seem a bit far-fetched at first but it really does work. I'm an optimistic skeptic and my wife is even more skeptical but when i showed her this video she went to the front yard and did it without even finishing watching. The results are too consistent to be coincidence.

[Yggdrasill4]

Nice, much more cost effective in making giant lens!

[gravityisweak]

The coolest thing about this video is that it shows that containers with specific shapes and filled with water could be used as makeshift lenses. Just like the water bottle acted like a lens, a specially designed container intended to be more like an actual lens would be even cooler. If it was a sealed container it could even rotate along with the sun instead of only being optimal for a few hours.

[ROBwithaB]

Hey Dan

This is definitely one of your better videos. Funny and informative.

I subscribed recently and am enjoying the channel. I'd like to post a video response, with a project I've just started (the first two are uploading while I type) called "101 ways to make fire".

Please let me know if that would be cool by you.

Will send you a copy to look at and you can decide.

Thanks

Rob

[GREENPOWERSCIENCE]

Hi Rob,

Thank you for the great comments. I look forward to your videos:-)

Dan

[elusivetantra]

Very cool and very informative vid thankyou for posting

[rueljre007]

how long this wood and dead leaf to burn.

It works in some part of the world like tropical country.

[zws1922]

the section of the lens is more or less a catenary

[ROBwithaB]

@zws1922

I understand that the hanging plastic sheet alone would form a catenoid, but does that act of loading it not tend to produce a parabaloid shape? (In much the same way that the cables of a suspension bridge change from catenary to parabola once the deck is suspended beneath. I really want to understand this because I am working on something similar.)

If not, what is the simplest way to get a hanging membrane to assume the shape of a parabaloid?

Hope you can help.

Thanks

ROBwithaB

[Anothercoilgun]

To think that both the water and the plastic bottler remain cold yet can burn and ignite flame.

That is the very definition of "works in strange and mysterious ways".

[Anothercoilgun]

Can you use epoxy in the shape of a lens and get same effect?

[TheVampirella]

Another great video! I really enjoy this channel.

[RedneckResponder]

A friend of mine had a stainless steel bowl on his back deck with catfood in it. The food caught fire and was so hot it burned a hole 6 inches round through the wood.

[metaflortex]

superfantastic!

Will try building one for our Solstice Celebration with an Earth Pipe under it filled with some home grown Ambrosia and smoke the Elements!(water,fire,earth,air­!)!!!

[oisiaa]

I've done the water bottle trick before.

[Stormrunner0002]

Makes me wonder how many fires are started this way by accident.

Good info to have in the back of your mind.

[Porterjebazillanator]

is this water making a parabolic shape?

Or is it more like a spherical mirror

[GREENPOWERSCIENCE]

It is a hybrid of both, because materials stretch the most at the longest point, more water rests in the center, the higher outer areas flatten out similar to a parabola. It is a similar opposite principal to the liquid spinning mirror. Both can only focus optimally straight up.

[KzrrainzYes]

What is the music that starts playing at 0:46 ?

[bluefire3000]

lol even ur wife interrupted u lol

[RealCaptainAmerica]

Keep up the great work! THANKS!

[bg0821]

nice. I once was going to try to make a parabolic shape by a similar means of placing sand into a plastic suspended off the floor, then coat the bottom of the plastic with resin to hold its shape. I had some problems though and a mess so I gave it up. but if someone took a clear resin and poured it into a plastic sheet like you did with water, when solid would make a nice convex lens. just dont want any bubbles in the mix.

[truckeejp]

Clouds' By Joni Mitchell explains it all

[PleasureTV]

Dan You're crazy man

is there anything You won't try??? :))

[TheLibertyFactor]

wd40 on those wheels!!

[Frosttty]

Love the videos, Dan! The bloopers are icing on the cake!

[sc0rpi0n0]

I always wanted to test this idea out. Thanks dan for doing this.

[Hamish121212]

How bush fires start

[ROBwithaB]

Yup. I've seen a broken, discarded vodka bottle half full of rainwater, start a veld fire here in South Africa.

I've been making a series of videos of

101 WAYS TO START A FIRE. It's scary how easy it is sometimes.

[ElektrischerApparat]

great video, nice bloopers! love your channel! cheers from switzerland!

[johnnecron]

the kitty wants you to stop playing with water and pick him up.

[johnnecron]

Denise is built like a brick Rohas.

lol

[JavaLessons]

Lawn gotta be mowed, haha.

How about a 2nd sheet instead of the bottle ?

[Sherri119]

This is all very interesting, but could someone please tell me what practical applications this could be used for? I'm really interested in how the sun can be utilized for power.  I get it with the solar panels, but I don't understand the deal with the lenses. Thx.

[JavaLessons]

A cheap way to drive a Stirling engine.

[Sherri119]

Ok, I found videos on the stirling engines and how the sun w/lenses run them....Ty. But what are you able to utilize the engines for? I really don't mean to be daft, I'm just trying to figure all of this out. I've so much to learn.

[pinochska]

the stirling engine can move a generator and power your home and/or electric car.. :)

[Sherri119]

Oh my. This is great then! I'd love nothing more than to get off the grid. I have several solar panels, but want/need to add to them, and I've yet to get a generator, but know I'm in dire need of one. (I'm in the country, and lose power most every time it storms, and especially in the winter.) Thank Pinochska. It's all starting to make sense now. =D

[Sherri119]

Ty Pinochska. That makes sense, and now has my interest even more piqued. Anything that gets me closer to being off the grid is a plus. I hate being a slave to the utility company.

[pinochska]

hey glad i could help ! and if you have lots of wind in the place you live you can also harness that energy.. which is good. ;)

[Sherri119]

Oh how I wish! We have virtually no wind here. I did research on that a few years ago and was quite disappointed. I just don't want to wind up like Ed Begley Jr....having to ride a stationary bike each morning in order to make a piece of toast. Lol.

[wizard4204]

liked the bloopers man you must live by an airport or something ive noticed you have alot of plains that cause noise issues

lol youd be cool on an isle cause wed be like we need fire and your all like well i get peribolic mirror in my wallet or make something crazy like

[pjharro]

Hey Dan,

Would multiple "layers" of tarp seperated with some water in each work like the water bottle did by increasing the power??

Did that make sence :/

[DaisLost]

I was just thinking this. also could put the tarps and to a rolling mechanism to change the "lens" shape....

[ThrasherAleX]

very cool Dan thank you

[muddymuddymuddmann]

Hey Dan, the family dollar or dollar general sells these realy clear and tough shower curtains that we use for a rain cover on the boat. the strength and super clearity would do a great job.

MUDDy

[godsend420]

yay i luv the bloopers and kewl experiment 5*

[nwosigns]

nice bloopers... the plane is awfully low... nice one with the wife running by.

excellent work... stuff people need to learn.

[neven01]

HAHA Show more of Denise and the Kitty =P

Good show Dan LOL love the Bloopers part makes it worth watching even that much more I was laughing at the end (Dont fry the kitten!) hehe oh btw oil that hand truck! lol

[quietman18]

Can you use this method to heat/boil water ?

[navtel]

interesting vid. thanks.

[joshngeselle]

thats awesome!

[taofledermaus]

Very interesting and fun to watch.  Good job Dan!

[ptcrippen]

reserve slowmo for bikini run thank you

[pgm98387]

Is the shape on the underside of the plastic sheet making the magnification?

You could make a concrete form from that shape?

[GREENPOWERSCIENCE]

The body of water does it. If you have heavy canvas or plastic that is very strong, cement can be formed this way creating a reverse mould for a large parabolic dish.

Dan

[infiniterealitiesOrg]

love it! thank you! :)

[GREENPOWERSCIENCE]

Thanks for the comment and enjoying our video:-)

[BILLGATES1277]

I see something at 1:21

[JULYINJULY]

WOW!!!!!!! Bloopers ath the end Great also.

I think I see a face in the slow motion water 1:25 . Maybe the Virgin Mary?

[cubcadetpuller]

this is cool

[imfromnature]

great vid, and i like the outtakes. i live by train tracks and an airport. since i have a lack of knowledge in editing, they just stay in my vids.

[anchor425]

lol...damn dan you went artsy fartsy on me....the water and the music at the begining....loved it!...lol...grins guy keep up the cool vids thankz

[GREENPOWERSCIENCE]

Thank you for the cool groovy comment. :-)

[imfromnature]

i thought i was the only one who says groovy these days

[ROBwithaB]

"Groovy" is making a big comeback.

Well, maybe it's not, but not for want of me trying.

Groovy, dudes.

[xutabola]

Nice!!!

[jotoew]

nice slow mo

[benjis007]

way psychedelic start!! cool stuff.