Hawaii man invents solar cooker
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- brylou01
- added this
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A Hawaii inventor has developed something he believes could change the world.
Inventor John Grandinetti cooked lunch for friends Sunday out on the lawn in Kahala. His heat source, a solar oven, looks more like a children's slide, but it will fry foods, bake bread and boil water.
The oven is really a long, double-walled vacuum tube filled with vegetable oil that sits in a reflective-compound parabolic curve -- a fancy name for a solar funnel that focuses sunlight on the tube. The outside of the tube is cool to the touch. But the inside reaches temperatures as high as 400 degrees -- 300 degrees on a cloudy day.
Inventor John Grandinetti cooked lunch for friends Sunday out on the lawn in Kahala. His heat source, a solar oven, looks more like a children's slide, but it will fry foods, bake bread and boil water.
The oven is really a long, double-walled vacuum tube filled with vegetable oil that sits in a reflective-compound parabolic curve -- a fancy name for a solar funnel that focuses sunlight on the tube. The outside of the tube is cool to the touch. But the inside reaches temperatures as high as 400 degrees -- 300 degrees on a cloudy day.
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- brylou01
- 11 days ago
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Ingenuity at its best! We need more people with minds like that. It's cheap, it can help save the environment, AND it'll save lives. Bravo.
I imagine we'll start seeing them at barbeques in the near future.
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Very cool, very practical.
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Yeah, bra! Environmentally friendly grindz!
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Sustainable with minimal impact. Great for sunny days.
Eco kine grindz -
hopefully george foreman will pick it up.
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This is very practical. How would restaurants use this invention? I'm just saying.
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I hope to see this at BBQ's soon, I mean you usually have BBQs on sunny days anyway, right?
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- googolplexer
- 10 days ago
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sounds cheap too!!! and price is the key factor when it comes to making any product a viable eco-friendly replacement for the general public.
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- RudyRudell
- 10 days ago
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I wonder if he could do the boiling water/turbine power generator thing when he's not cooking food. That would be all kinds of legit.
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- ultravphunter
- 10 days ago
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Great stuff!!
We humans can be so cool if we are given a chance.
Simple and elegant solutions to critical problems.
..we need to keep on our toes and not let oil interests and other conglomerates join with the media stop the free flow of information. Last generation before the internet could be easily controlled by a few outlets.. They made us invest our resources in super highways and suburban sprawl that was bad for civilization but good for profits. Whatever happened to Electric Vehicles? My father told me told me one of the pioneers was found dead. Challenging as it may be we NEED to keep on our toes and not let them take our minds and treasury over again.
GO FREE MEDIA-
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- CarolynGillis
- 10 days ago
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Is it cheap to buy one?
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love some of the stuff we make. some of the other stuff not so impressive
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It won't be cheap.Count on that.
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- keithponder
- 10 days ago
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i think that they are cheap to build for oneself. i first saw solar cookers a few years ago at a music and learning festival in the mounts of colorado.
the key is simply mirrors and insulation. things tend to be cheaper if you don't wait for a manufacturer to market them, but create your own version.... :)-
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- phillyphil
- 10 days ago
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The first solar cooking device I ever saw was at an ecology exhibition in Stockholm in the late seventies. Since then, a wide variety of solar cookers have been invented, some of which you can discover if you click on the link below.
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- Vierotchka
- 9 days ago
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- Vierotchka
- 9 days ago
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sweet article!
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this is perhaps is something I would've imagined Bill Nye The Science Guy having a tutorial in one of his episodes. -
ya this guy took the idea from this eco friendly compound in africa
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thats a cool idea, i think id use one
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keithponder: did you read the article? it's SUPER cheap!
This is awesome. I hope it gets out to people that need it. Hell, with the economy in america going the way it is, we may ALL need one just to get by!!
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Make it half the size and he's got a billion dollar product.
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- Ice_cream_Man
- 9 days ago
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I made a small version of that in 7th grade science class and cooked--the concept isn't new, but making it widely available for cheap would be awesome. I'd have one.
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- sarahbelle
- 8 days ago
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"invents"?????
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