Greenhouse gases are reaching dangerous levels and oil prices are at their highest, so we desperately need a new, non-polluting fuel. We may eventually need to mine Helium 3 from the moon, but until we can get there and start shoveling it up from the surface, we need to figure out how to transport it efficiently back to Earth. In the meantime, we can fill our gas tanks with metal. No, we don't mean that are gas tanks are MADE of metal, we mean that we can use powdered metal as a fuel.
Kurt Kleiner writes in the October 22-28 print edition of New Scientist that the car of the future may actually run on metal. Researcher Dave Beach has found a way to use powdered metal, such as iron or aluminum, as fuel. When this powdered metal is ignited, it produces large quantities of energy. The average car could travel 3 to 5 times as far on a tank of metal than it can on a tank of gas?and you never have to buy more metal, you just rejuvenate the metal you've got in your tank by recharging it with hydrogen.
The only problem is that the metal powder particles have to be on a nano (extremely tiny) scale, or they won't burn cleanly and the residue will gum up the engine (sounds familiar).
Art credit: http://www.freeimages.co.uk
Despite the skepticism of the US media, the truth is that crop circles are still a mystery. Those of us who love them look forward to the new crop circle calendar every year. And while supplies last (which won't be long), you get a free 2005 calendar with every 2006 crop circle calendar you order. Get crop circle postcards too?they're a great way to keep in touch with friends.
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