Deb's Blog (1)

Pre-Columbian cultures were awake about 4 hours when it was dark (just like us). They (also like us) needed to produce light at night in the most energy efficient fashion. Bowls (such as this one http://www.precolumbiangold.com/images/inca.h67.jpg ) weren't conducive to holding liquid. What were they used for? How about as a light reflector? So once the civilizations figured out how to disperse light efficiently then every household would want one, right? Ergo the stone balls. Roll the ball in… Continue