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ChemistryPower plants: Algae churn out hydrogen
Green algae can produce hydrogen, a clean-burning fuel that could one day power pollution-free cars.
By Corinna Wu -
PhysicsManhandled molecules, midget memories
A thick coating of organic chemicals can record information at densities potentially a million times greater than is possible with current compact disk technology.
By Peter Weiss -
ArchaeologyVase shows that ancients dug fossils, too
A painting on an ancient Corinthian vase may be the first record of a fossil find.
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AnimalsNew frog-killing disease may not be so new
The skin disease that savaged amphibians in remote wildernesses in the 1990s has been linked to outbreaks in the 1970s.