|
Solar Heat Hacks |
 | Incredible 3D Printing With Sunlight and Sand
We've shown you the power of the sun before, and here's another superb example. This 3D printing project demonstrates what you can do in the desert with just two materials: sand and sun. In the demo above, sunlight and sand are used to build... |
 | DIY "Solar Death Ray" using a Satellite Dish
We've seen an incredible solar mirror before which can melt steel in seconds. That one was expensive and built in a lab. This time, you can build your own by attaching thousands of mirrors to a parabolic satellite dish. The video claims it's... |
