greenpowerscience.com This is a follow-up video to a solar parabolic heat cooker I made a few years ago. This construction is much easier and the thinner mylar allows for a much more accurate image of the sun producing amazing bulk temperatures. A stand and Heliostat is optional. I can cook off axis with for or five manual adjustments during a cooking cycle. The longer focal length allows for arrays of up to 25 mirrors at 30 feet.
Thanks, I needed it for an artsy teacher friend.
Hi,
The channel is ROJASDAN ON YOUTUBE but there is no art on it right now. Just some stretching methods for canvas and some dog rescues.
Denise’s older art page including some commissioned paintings is at
DENISEROJAS.
com
as soon as i get paid, im going to the hardware shop, i just made one of these stretching it over a medium bowl, managed a slight parabola by putting it in the freezer for a few mins and then was able to light a leaf with heavy cloud cover, i want to make one i can pull a propper vac on now
Thanks!
Dan, please, sir what is the channel url for your art channel? Thanks.
That was Awesommmmmmmmmmmmmmmmme!!!!!
dove posso trovare materiale riflettente ? grazie
Love this! You do a great job 🙂
Round, but a square is a lot easier to make from scratch. If you have a round object it will work great:
TRASH CAN LID
watch?v=_8sd9UgjXLE
What do you think the most efficient shape for a parabolic mirror might be?
Excellent. Thank you.
Mythbusters where are you?
Excellent detailed instructions. Thank you very much.
Fantastic video mate!! Another brilliant instructional video. I just wish there had been a little bit more information on the difference in the sides of the Mylar and the electrical procedure that you did to it, and why.
Thanks Dan, I live in the Philippines and this is going to be a big help in helping those in the villages to cook. I am home (USA) for the holidays. I just want to make sure I get the right blanket.
So cool…Dan what part of FL. Are you from? Homestead here saying ThanX again brother, your amazing
I’ll bet you slept on the couch that night for the prank you pulled on Denise! 😉
Thank you Mike.
Very well produced, thank you for taking the time to make this for us.
Great,as always.
With things like this, how is solar energy still so expensive?
amazing paintings think we could see a video of denise’s work ?
i know! i know! what about the solar heat ray? well it is neat
and a low cost solution.ideal for the backyard tinker on a budget.
I will have a video on a round mirror. I just made one in 15 minutes:-) It is like a drum and a near perfect parabola/spherical shape. The mirror flat is distortion free, vacuum it casts really good images on the wall. May be a first surface telescope option too. Will test with the moon tonight if the clouds go away!
With a little trick, the wrinkles go away.
Hello Dan,
I love your videos, they’re very informative. Have you ever tried this using a round form for your vacuum frame? It may not be worth the effort, but it seems like you could get a very precise focus. Since you use coroplast material, you could build the whole thing out of it. Using a few thicknesses to beef up on the sidewall , would increase the thickness of the side wall, making it strong. Just a thought. Thanks for the great video.