How to Make a Pyramid From Cardboard and a Perfect Circle

About: You may recognize Dan and Denise Rojas from their appearances in various made for tv movies and national commercials. As the hosts of Green Power Science, they share Fresnel lens and alternative energy ideas...

Published on Apr 15, 2012 by GREENPOWERSCIENCE
Solar Collector DIY Tetrahedron.
A tetrahedron is a polyhedron composed of four triangular faces, three of which meet at each vertex.

Share

    Recommendations

    • Make it Glow Contest 2018

      Make it Glow Contest 2018
    • Toys Contest

      Toys Contest
    • First Time Author

      First Time Author

    Discussions