02/03/2011

Does fluoride really fight cavities by 'the skin of the teeth'?

In a study that the authors describe as lending credence to the idiom, "by the skin of your teeth," scientists are reporting that the protective shield fluoride forms on teeth is up to 100 times thinner than previously believed. ...

2 new crustaceans discovered in Iberian Peninsula

A team of scientists has described two cladocerous crustaceans, which could be endemic to the Iberian Peninsula, and which were found in two lagoons, one in the lower basin of the Guadalquivir river, and the other in the ...

Hair dyeing poised for first major transformation in 150 years

Technological progress may be fast-paced in many fields, but one mundane area has been almost left in the doldrums for the last 150 years: The basic technology for permanently coloring hair. That's the conclusion of an analysis ...

NIST expert software 'lowers the stress' on materials problems

Before you can build that improved turbojet engine, before you can create that longer-lasting battery, you have to ensure all the newfangled materials in it will behave the way you want—even under conditions as harsh ...

NYTimes.com to start charging readers 'shortly'

The New York Times said Wednesday that it is in the "final testing phase" of its plan to charge readers for full access to the newspaper's website and will start doing so soon.

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