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Wednesday, May 5, 2010

5 May - News Articles


Discovery News


GIANT AIRSHIP POISED FOR LIFTOFF

Payloads are carried inside the balloon. he ships are designed to haul payloads as heavy as 15,000 pounds up to 2,500 feet. Or, they can fly at mid-latitudes of around 20,000 feet to serve as a communications hub-in-the-sky or a surveillance platform to monitor oil spills, forest fires, volcanic eruptions, hurricanes as well as provide border patrol and other security monitoring services.


ULTRASOUND SPEEDS UP BIODIESEL PRODUCTION

 An ultrasound generator drives an ultrasound transducer, the machine that makes ultrasonic waves pass through a mixture of methanol and vegetable oil. These waves heat the mixture of oil and alcohol, creating bubbles that eventually burst. The bursts release high pressure and temperature, which break the molecular bonds in the fluids, allowing the two liquids to mix at a much faster pace. After the molecular bonds break, the fatty acids release, producing the by-product glycerin, and the remaining molecules recombine into a biodiesel.


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