The e-cube, invented by British engineers, significantly reduces the energy used by fridges and freezers, which are estimated to consume about a fifth of all domestic electricity in the UK. The one-size-fits-all, retrofit, wax device, barely three inches wide, fits around the temperature sensor, to more accurately reflect the temperature of the contents. It said… [Continue Reading]
Crayons Made With Soybean Oil
August 16, 2006 by Leave a Comment
Today, virtually all crayons are made with petroleum wax. An optimal alternative, however, is to make crayons with pure soybean oil. One company, Prang, manufactures the soy crayons seen here. They are much less toxic, and they also write smoother and brighter without waxy flaking. Available from Blick Art Materials or eBay
Efficient Lubricant: Jojoba Oil
April 24, 2006 by Leave a Comment
You’ve probably heard of Jojoba oil being used in cosmetics, but it’s also a great substitute for petroleum-based lubricants, which tend to be strong smelling and polluting. Jojoba is the best alternative because it is a natrual liquid wax that never goes rancid. Use it as you would a petroleum lubricating oil, such as for… [Continue Reading]
Inexpensive, Non-Toxic Solvent: Washing Soda
April 12, 2006 by Leave a Comment
Washing soda is an efficient substitute for conventional toxic solvents. It cuts grease, cleans petroleum oil, removes wax, and neutralizes odors in the same way that baking soda does. Washing soda is sodium carbonate — it is in the same family as baking soda, but it has been processed differently. It is much more caustic/alkaline,… [Continue Reading]
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