Research performed by scientists at the U.S. Department of Agriculture (USDA) and published recently in the journal Crop Science has demonstrated that mineral levels in new varieties of broccoli have not declined since 1975, ...
Biotechnology
Oct 13, 2011
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A team of chemists from the University of Seville (US, Spain) has managed to distinguish between different kinds of tea leaves on the basis of their mineral content and by using artificial neural networks. This technique ...
Analytical Chemistry
Sep 30, 2010
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Four billion years ago, our then stripling sun radiated only 70 to 75 percent as much energy as it does today. Other things on Earth being equal, with so little energy reaching the planet's surface, all water on the planet ...
Earth Sciences
Apr 6, 2010
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A group of researchers in Australia and Taiwan has developed a new way to analyze the health of human teeth using lasers. As described in the latest issue of Optics Express,, by measuring how the surface of a tooth responds ...
Optics & Photonics
Aug 18, 2009
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Tiny sediment grains are covered with a very fine-grained, complex mixture of minerals in an open fabric that results in a large surface area in contact with water between the grains. Scientists at the U.S. Geological Survey ...
Environment
Feb 23, 2009
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