Solar ice maker: Intended for disaster relief situations, refugee camps, and developing nations the bright minds at San Jose State University have created an ice making machine that uses the heat from sunlight to power a chemical reaction.
How to preserve eggs. Use mineral oil on eggs. I had no idea you could preserve eggs (unrefridgerated) for months by coating them with mineral oil! Alternatives to mineral oil: Jojoba oil or Kepeg (though not sure of the chemical makeup of Kpeg).
Yellow Bug Light Enjoy your porch and patio after dark.without bugs. No need for smelly bug sprays. Use this yellow bug light instead. Flying bugs and insects cant see yellow, so they arent drawn to it as they would be to a regular white light.