paul has a new video  

 



visit the thread.

see the DVDs.

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Make Your Own Fresnel Lens for Intense Solar Power  RSS feed

 
George Meljon
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Got a DirectTV dish you don't need? Make a powerful fresnel lens to heat stuff up quickly!

http://www.youtube.com/watch?v=Q90i31JIQ3M

Reading about using a water mass to keep greenhouses warm makes me think this is an easy way to heat up some water. I'm not sure on the management of the water and the dish and how long it could be left unattended, but this seems like a very simple and powerful use of the sun!
 
George Meljon
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Here is a modular water heat storage system

http://www.youtube.com/watch?v=n90Y6Qwab_8
 
George Meljon
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Here is a way to manage the target of the fresnel lens

http://www.youtube.com/user/GREENPOWERSCIENCE?feature=watch
 
George Meljon
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This Greenpower Science channel on youtube is going to take up all my time learning!
 
Burra Maluca
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I've embedded those video below.





 
George Meljon
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This one is excellent. It takes nothing more than greenhouse plastic braced on a frame with water in the middle to reflect enough heat to burn a board. The frame he the uses could easily be worked into a greenhouse structure.

http://youtu.be/eeSyHgO5fmQ


 
Burra Maluca
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I beat youtube into submission and persuaded it to embed.

 
Hug your destiny! And hug this tiny ad:
The $50 and Up Underground House Book by Mike Oehler - digital download
https://permies.com/wiki/23442/digital-market/digital-market/Underground-House-Book-Mike-Oehler
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