Archive: 14/07/2010

Tea contains more fluoride than once thought

Black tea, a Southern staple and the world's most consumed beverage, may contain higher concentrations of fluoride than previously thought, which could pose problems for the heaviest tea drinkers, Medical College of Georgia ...

dateJul 14, 2010 in Health
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Rainbow trapping in light pulses

Over the past decade, scientists have succeeded in slowing pulses of light down to zero speed by letting separate frequency components of the pulse conspire in such a way that a receptive medium through which the pulse is ...

dateJul 14, 2010 in General Physics
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Fascinating images from a new world

The ESA space probe Rosetta flew past the Lutetia planetoid at around 6 p.m. CEST on Saturday. The OSIRIS camera system, built and developed under the direction of the Max Planck Institute for Solar System Research in Katlenburg-Lindau, ...

dateJul 14, 2010 in Space Exploration
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