Ultrasound 'making waves' for enhancing biofuel production

All chefs know that "you have to break some eggs to make an omelet," and that includes engineers at Iowa State University who are using high-frequency sound waves to break down plant materials in order to cook up a better ...

Dig at Colonial battleground uncovers fort's stone walls

An archaeological dig at an 18th-century military site in the southern Adirondacks has uncovered large sections of stone walls that are believed to have been constructed within a larger British fortification that was never ...

Controversy over reopening the 'Sistine Chapel' of Stone Age art

Plans to reopen Spain's Altamira caves are stirring controversy over the possibility that tourists' visits will further damage the 20,000-year old wall paintings that changed views about the intellectual ability of prehistoric ...

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