News tagged with silica

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Skeletons in the pre-Cambrian closet

The Cambrian explosion marked a major blossoming in the tree of life around 540 million years ago. Nearly all of the major phyla in the animal kingdom appeared in a sudden burst of evolution. One of the drivers ...

dateJan 07, 2011 in Archaeology & Fossils
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Tracking viruses back in time

How long have viruses been around? No one knows. Scientists at Portland State University have begun taking the first steps toward answering this question.

dateSep 06, 2010 in Earth Sciences
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Nano-sand to improve lotions and cosmetics

South Australian researchers have invented and patented a new technology for delivering cosmetics and drugs to the skin. They are using nanoparticles of silica (essentially sand) to create longer lasting cosmetics ...

dateJul 05, 2010 in Bio & Medicine
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