Foundry

Daily Prep

DIY Solar Foundry

Sun + Fresnel Lens = Temperatures of 3800 degrees Fahrenheit
Tuesday, May 21, 2013, 6:22 PM

Learn how to build a solar foundry and take full advantage of the sun's power. 

http://www.treehugger.com/gadgets/diy-solar-foundry-reaches-temperatures-3800-degrees-farenheit.html