Added: 2 years ago
From: GREENPOWERSCIENCE
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  • If you had an eight by five mirror how much heat could that generate? I am curious as to how much heat I can get from a thing like this. 

  • Love it.

    speaking of drum- maybe find an old frame drum or large tambourine.

    That way it will be circular, portable, and still be able to fit in a neat little case :)

  • haahaa use wd40 next time it'll take the pain away instantly it works

  • Super glue works well on cuts like that but you have to get it to stop bleeding and make sure it's dry.

    P.S. Yes, it stings a little at first but it beats stitches and leaves far less scarring.

  • cut looks like a sad face :(

  • yeah, stan must be...GAY

  • how is this king of mirror is called??i want to make one !

  • dan i would do a quick search on youtube a bout vaccum forming use this idea

    i would get an nice dish, sand prep the surface smooth, cut out the mylar sheet

    over sized, drill a hole in the middle of dish say 1/4 inch

    attach a vaccum hose there ie silicon it on back to port the vacumm, then spary 707 3m glue on dish and vaccum the mryal to it not heet. then hold the vaccum for on hour you now have mirroed dished

  • Dan & Denise I'm really sorry to hear about Max : ( I'm sure he appreciated you two as much as all of us do : ) I've been greatly inspired by your work and experiments especially the experiment with The vacuum bottle and stainless insert heating element. I was wondering if you've ever used or built a solar tracking system ? or thoughts on that ? Love the paabolic and fresnel cooking as well. Thanks again for all your inspirations. GREENPOWERSCIENCE ROCKS !!!

  • @91grecsi Thank you:-) He was a good friend.

  • Good Job.......................!

  • The sun don't move, the earth move :-)

  • @supersnigeln007

    You are wrong. All motion is relative.

  • You should have been on the Mythbusters for the Archimedes' death ray episode.

    Those guys from MIT suck compared to your setups. Your one mirror was more powerful than their entire array...

  • Cool idea, but can you use this construction to heat up a room?

  • Where do you get mylar? I have got the emergency blanket, but it is very thin, and I keep scavenging my chips packages (mylar too according to someone). But a piece of this size??? Tell me.

  • if you look into the mirror, can you see the jar magnified?

  • dont try using this parabolic mirror from your yard on a landing planes LOL

  • STARGAATTTTE

  • hahaha... you are funny!

    in one minute talking about sun power and all them out of no where show the dog... really rtandon and funny

    good work with the mirror!! put it to produce eletric power, i mean, if you are interested.

    ahhh, sorry for the dog, he looks happy at the video that is thanks toyour !

  • Not very polite to show me your hurt and the lumb in the dog.

  • Not very polite to show me your hurt.

  • Well dan, it would seem that you might want to make an octagon out of

    some 2 x 10's or so..

    how wide does the reflective material get.

    you can flex a 4 or 5 foot long mirror and get a fp of about 15 -20 feet.

    these are the long narrow ones.

    I imagine that you could get several bowed.

    yes concentrating the sun has some neat potential. What about a solar powered

    jet turbine???

  • pretty dog

  • Also, if you coated the back of your reflective material with some type of fiberglass before sucking it into a parabolic shape, you could let it dry while still under suction, and it would leave you with a parabolic dish. All this daydreaming is making me want to try it!

  • If you had your material stretched over a deeper frame you could then apply heat to your plastic surface as you also apply vacuum, and your material would stretch to form more of a parabola. Of course you'd run the risk of melting your material, but you could stand back and just apply enough heat to do the job. I was thinking of using a heat gun.

  • R.I.P dog

    i like the water bubbling

  • it looks like that puddle of metal you jump into in super mario 64

  • sorrxy about the dog=C

  • @1357SolidGold :-( Thank you, he was a great dog. When we found him he had 2 broken legs from a car. We got him fixed in 2001 and we think the bone cancer started there.

  • @GREENPOWERSCIENCE U BOIL IT! SO HE DIED!!!! >.< By the way Condolence RIP Max :(

  • s0rry 4 max =(

  • its spherical not parabolic.

  • Or , you , just, buy, a damn, mirror.

  • OH NO A WASP!!

  • сука пидор говори по русски, уебище

  • directing it to a peltier cell would not be good? TO GENERATE ELECTRICITY?

  • so wood that heat up a 50 gallon drum of water ?

  • nothing wrong with recycled clothing lol

  • and he never came back died...oh! wait he did came back!

    neat trick! thanks

  • cool idea, though for a variety of reasons it is not exactly parabolic. Next time paint the back of your bottle of water with high temp black enamel. I am sure a lot of light was passing through it.

  • Vacuums are very close to a parabola, the clear glass bottle has a darkened steel wool inside. This increases the surface area of the heat to the water and lessens atmospheric loss.

  • @GREENPOWERSCIENCE Hello, how can you "darken" the steel wool? (and what kind of wool the best for this purpose)? Thanks for the video, its great as always!

  • why did U not use a circular frame?

  • You could seal the plastic film around an old circular satellite dish to get a true parabolic variable mirror. Is there much light wasted that passes through the reflective film?

  • Dan this is great idea to make big cheap parabolic mirrors. Are you planning on trying it on a circular vacuum? If not you should. That would definitely help about the ripples you get in the corners I think. And you could get it to 2 meters easily, idk if you can get a flexible mirror that big though.

  • Hi,

    Thanks alot Dan for spending some cash on the experiments for the people so see how to save the GREEN. Is million of thanks for teaching and showing other then that people may improve thier studies by looking at all this experiments and ideas. Thanks alot!

    By the way, sorry to hear tha the Dog has pass away. Rest In Peace!

    God Bless!

  • Thank you for the kind words.

  • Sorry about your dog, Dan- your videos are always entertaining and informative- keep it up, bro...

  • Loled at herbal remedies :)

  • Sorry about your dog man :( Anyway, thanks for this video, I'm now curious whether you'd be able to build a full-on hot water system for a house using your array of parabolic mirrors. Keep it up :)

  • If you could make a round frame you might get more usable area. With a long focal length like you you probably need to be careful, there is quite a distance range where that beam is dangerous!

    When you went behind the bottle I was thinking you were going to get it. :-)

  • I had my wife stitch me up after a cut to my forhead on time!!

    Go for it ,,put it on youtube

  • I watched through 2:32 and I still don't get the point, the big picture, el photo grande, the purpose of the video, I subscribed last night after watching another of your videos but on this one I don't see the reason why.

  • Jump to 5:00, these can be made huge for little cost, also some what focusable.

  • I tried to do the opposite: making a balloon: a circular frame, a reflective sheet on the back and a transparent sheet on the front. and pump some air in between

    I didn't find a glue good enough to hold the transparent sheet. I will try again

  • Thanks for sacrifing your hands and time to teach us great things

  • Cool,

    What if you put a black plate/rod in the water to assist in heat absorbency or had the bottle made of a dark material.

  • what if you make the frame round?

  • good question. If those ripples at the edges were eliminated it can be vacuumed more betta than b4

  • I was thinking the same thing.. Maybe put it on an old mini satellite dish? Or cause some mayhem and use a full size one.. mwuhahahhaha :)

  • love it...

  • That comes in handy if you need to boil water and have no electricity. Thank you. I guess boiling stuff is it's purpose???

  • Dang! You can fry an egg on that thing. lol

  • Yup, I already cooked an egg with my parabolic mirror... I am glad Dan you took a brake with that cut and thought safety first, especially in what we are doing we must really consider this in many ways. It seems like there's a black spot on the glass, did you paint it? You know how well that flat black paint works, I'm sure.

  • the amount of energy u are getting out of that is impressive... All u need now is a system to have the lense track the sun

  • heliostats cost a lot, unfortunatly.

  • OOOOO the beginnings of the Archimedes Death Ray.

    Get about 20 or so of them all hitting a single spot and then aim that through a Fresnel lens and see what happens!!!!!!

  • The Fresnel lens will melt, most of them are made of plastic

  • Loved this video! awesome solar power.

    Sorry you got cut, a little crazy glue would seal it up and save you a trip to the doctors.

  • I wonder, as a cheap alternative, could you use a mylar baloon. Like a old birthday baloon, it would be a lot smaller, but may work. Maybe glue it across the top of an old mixing bowl then pull a vacuum in it.

  • @rancidscooter There is a patent for that already. Half mirror half transparent and with solar chips to generate electricity. I plan to build one too, just need to find proper (resistant) materials.

  • Wouldn't a round frame produce a better mirror?

  • if it hasn't been 24 hours you might still be able to get stiches. are you okay? :)

  • RobwithaB - I am not an astrophysicist, but I think your theory of the interior of the Sun and the Earth being heated by compression from gravity is wrong. Earths interior is heated by radioactive decay of material in the core and mantle. This heat is the driving force of plate tectonics, continental drift, volcanoes, and earthquakes.

    Nice video Dan. If you pre-stretch the mylar like an artist stretches a canvas over a frame I think the wrinkles would go away and make a more efficient mirror

  • Radioactive decay has a part in heating, but pressure (from gravity) is the major contributor. Remember the pressure/temp experiments in physics? In the case of the earth, the pressure is enough to produce intense heat, for the sun, the pressure/heat combination are enough to fuse Hydrogens into Heliums. (I'm also not an astrophysicist, just a geek)

  • Hey Dan

    Good to see a video from you again.

    I thought maybe you'd taken such offence at me calling your previous attempt "catenary" that you'd left Youtube in a fit of academic pique.

    My experiments at forming natural parabolas sent me in the same direction ie. vacuum.

    I used 110mm (4inch?) sewer pipe as a frame. Sealed the one end. Drilled a hole and inserted some aquarium pipe. Siliconed a sheet of aluminium foil from a potato crisp packet to the other end. Suck on pipe. Bend closed et voila.

  • Good enough to ignite charcloth or tinder fungus pretty much instantly. Will post it soon as part of my fire-making series.

    The reason that vacuum works is that it is pulling all parts of the film simultaneously and equally. When you try to deform your sheet by adding a liquid, most of the weight is in the center, so you get a catenary shape. The focal locus of the catenary is not as concentrated as the point from a parabola.

    And I repeat my advice about a circular frame. Much less distortion.

  • P.S. That opening sequence with the fun-house mirror effects was very funny.

  • About illnesses: do a research on rife machines. Also, have you heard of MMS (Jim Humble)? My dog is 15 now and he can't handle infections very well,so I give him MMS and that is great- no more antibiotics needed. Both rife m and MMS are supposed to help against cancer.

  • What!!! Why didn't you fry that bug with one of your lenses!

  • it looks like the mirror scene from matrix

  • Next time you could put a tea bag in that bottle and make sun tea.

  • Our Earth and Moon formed from the protoplanetary disk, the material was once a part of other stars - but never actually a part of our own Sun.

    I suppose you could say that the gravitational pull of our Sun caused it all though, by enabling the accretion disk to form, which inturn formed the planets/moons.

    But if the Sun disappeared, the internal heat of our planet, and the orbit of the moon - would both still remain. They are independent of the Sun.

  • Except that the internal heat of the earth and incoming sloar radiation are now in equilibrium. If we removed the sun, we would have the earth radiating its interal heat back into space.

  • In a sense, one could say that ALL energy is gravitational, right?

    In the sense that the fusion reaction of the sun is a byproduct of the intense gravitational compression.

    (Gonna go off to your channel now and make sure I'm not embarrassing myself by arguing with an astrophysicist or something.)

  • The heat in Earth's core comes from many things, including latent leftover heat from the friction from the planet's initial formation. But the majority of the heat from our planet is caused by the continual radioactive decay of heavy unstable elements.

    i'm not an astrophysicist, your solar heating equilibrium theory does sound interesting (it's the first time i've heard it).

  • id hit that dog!

  • are you a car?

  • Geo-thermal and Tidal arn't from the sun :-/

  • the panels would likely have to be on a major angle so that the focal spot isn't uselessly hanging in the air high above the house. So that angle will likely be enough to make any rain flow right off anyway.

  • wow you really go through a lot trying to make your videos, mics that don't wanna work, getting cut up, attacked by uncool wasps, and youtube collects all the advertising dollars, man its just not fair...

  • perhaps a round form would work better?

  • maybe a old satellite dish

  • wouldn't it better to have a circular frame for the mirror?

  • Hey cant you put your parabolic mold that you made inside the box for better shaping? Maybe you can add glue and vacuum and get it to stay? can you stretch part c at all? (What is part - c?)

    anyway cool stuff man. Looking forward to your future experiments.

  • stick your hand in front and carterize the cut. lol

  • haha yeah i was thinking the same thing at 7:15.

    "Oh man he's gonna try it. You can see the temptation building!"

  • Dog is handsome, Taylor ugly flea face, LOL

  • Comment removed

  • Are you going to attempt a circular frame? Would love to see that.

    Thanks for the vids.

  • Wow, you're great.

    Sun is life.

  • wouldn't this work much better with a circular frame?

    You could make one easily by cutting a hole out of a sheet of plywood with a jigsaw.

    love the videos, keep 'em coming!

  • your wife is abeautiful woman with a very professional presentation and you do a super job i hope fate will allow the both of you to make huge bucks with a network show sometime the education you provide us regular guys is great keep it up

  • Go MAX!!!!!

    What a sweet dog. Give him a kiss:-)

    That is a great mirror idea, does it cast images clearly. I am an artist and looking to make a camera for a contest. I am thinking of exposing 8x10 film in a black box.

    YES, what do ya think Dan.

    Best to you and your family.

    Julie

  • You should build one thats thicker, like maybe 10 inches to vacume, but maybe smaller to make up for this. But at that point, add some slack when you first put the mirror c and then get a deeper parabolic shape going.

  • I feel bad for your dog...hes going through a rough time...hes sick, has cancer, and has three legs. . . .You are a great person for rescueing and taking care of those dogs!

  • impressive man! i laughed pretty good when i saw the stand on fire. you really do think outside the box sometimes.

    i bet the project would be excellent if you have a circular frame. (next project?)

  • You could build a big frame out of wood or metall where you can mount rowes of ordinary IKEA mirror sets (4 peices 45x60cm each for about 20 USD) on top of each others. Then adjust each and every mirror to point the light on the same spot. That would warm up a relative big area but with enough mirrors the heat would be enormous. For example 48 mirrors (6x8) would cost 240 Dollars and would be enough to get a big sterling engine run. Forget to try to focus small sheets, go for the big stuff.

  • cool !!!

  • VERY cool (er...hot)! I wonder if you'd be better off with a circular frame? Still amazing power level for such a cheap setup.

    Sorry to see your dog suffer. Glad to see you're so kind to animals ;)

    Hey, is this your injury video? First glass slashing, then wasp attacks. You must have been a bad boy to get so much bad karma...

  • Think I just need to focus, been a icky three weeks.

  • try some Piracetam Dan.

    Better than coffee.

  • Sort of reminds me of that scene from the Matrix with the mirror.

  • I enjoyed your video, as always. :)

    What is your favourite solar concentration method? Fresnel lenses or some of the parabolic mirrors?

  • Comment on your cut..... When I slice my hands/arm I just hold them together and put 'super-glue' on the spot (slice) and it holds it very nicely for two or three days. Time enough for it to heal in most cases. I'm not a Dr... so try this at your own risk.

  • there is also a kindof medical "glue" you can smear onto cuts and when it dries it forms a nice clear bandaid. I think it's called a "liquid bandage"

  • use more silicone lolz

  • I got a kick out of when you were guessing where the focal point might be. "Guess its about 5 meters".... Was waiting for you to say "Oh crap, its more like 30. Honey call 9-11. The privacy fence is on fire." :-)

  • wear glove next time..

  • Nice vid! Keep up the good works. ;)

  • Looks like you re-edited it since last night.

  • Yea, the opening bothered me, too long, just did not feel right.

    Thank you for the comment.

    Dan

  • I agree, it was long and a little bit weird.

  • Also, no nobody knows that not only did you gash your hand, but you also got stung by a wasp...all in the name of science.

  • your wife is hot!!!

  • :-)

  • SMART!!!

  • Hey! If you used a round frame and cut the biggest circle you could and attached it with slack (make it an inch or so bigger than the frame), when it pulled tight with the vacuum it would not have those creases and the circular material would reach a much more truly parabolic shape.

  • You are AWESOME!

  • Hey Great Info, An Idea that will make this a permanent shape. At work we use a liquid packaging foam to secure our heavy part in its shipping box. Take your form and pump this foam in side then place the vacuum on it and let it harden. I can supply name of product if you would want to know more.

  • H2O2FromH20 That is a brilliant idea man!

  • hahaha good vid liked the bloody sad face at 4:00

  • You may get a better parabolic shape with a round frame.

  • Great video

  • Good stuff! We never know what direction you are going to go next, but it is always interesting!

    Thanks

  • ouch lol nice vid

  • try a round base, like a needlepoint hoop, great work, outtakes are just as fun, thanks.

  • keep up the great work. look forward to all your videos. peace

    rawbush

  • Good vid.........as per usual :)

  • Hey it works! 5 min water boil. Good video. Thanks for keeping it cheap and simple. You drew blood. Must mean you are making progress. I hope everything works out with Max.

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