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ChemistryFoam gets its shot at anthrax
A recently developed chemical cocktail that kills anthrax spores and breaks down chemical warfare agents and anthrax has received its first real- world trials in anthrax cleanups.
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ChemistryNew sensor can ID dangerous bacteria
When newly created organic molecules, called TWTCPs, are attached to a porous silicon wafer and exposed to a certain class of bacterium, the wafer changes color.
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Leonardo’s Bridge
In 1502, Leonardo da Vinci made a simple drawing of a great, 240-meter bridge that was to span an inlet at the mouth of the Bosporus River in what is now Turkey. The bridge was never built, but Leonardo’s design has been reproduced in a wooden bridge for pedestrians over a highway in Norway.