Interactive Web-based science tutorials can be effective tools for helping elementary school teachers construct powerful explanatory models of difficult scientific concepts, and research shows the interactive tutorials are ...
Other
Jun 18, 2009
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(PhysOrg.com) -- In a breakthrough that will help scientists unlock mysteries of the Sun and its impacts on Earth, an international team of scientists led by the National Center for Atmospheric Research (NCAR) has created ...
Space Exploration
Jun 18, 2009
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New research by a team of University of Toronto scientists could lead to substantial advancements in the performance of a variety of electronic devices including digital cameras.
Engineering
Jun 18, 2009
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Synthetic fertilizers have dramatically increased food production worldwide. But the unintended costs to the environment and human health have been substantial. Nitrogen runoff from farms has contaminated surface and groundwater ...
Environment
Jun 18, 2009
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Detailed, accurate evolutionary trees that reveal the relatedness of living things can now be determined much faster and for thousands of species with a computing method developed by computer scientists and a biologist at ...
Evolution
Jun 18, 2009
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The mystery of giant sperm present in some living animal groups today has now taken on a new dimension -- in one group of micro-crustaceans new evidence shows that it is a feature at least 100 million years old.
Plants & Animals
Jun 18, 2009
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Researchers have reconstructed atmospheric carbon dioxide levels over the past 2.1 million years in the sharpest detail yet, shedding new light on its role in the earth's cycles of cooling and warming.
Earth Sciences
Jun 18, 2009
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The Wildlife Conservation Society (WCS) announced today a major breakthrough in the science of saving tigers: high-tech DNA fecal sampling.
Plants & Animals
Jun 18, 2009
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The sun is in the pits of a century-class solar minimum, and sunspots have been puzzlingly scarce for more than two years. Now, for the first time, solar physicists might understand why.
Space Exploration
Jun 18, 2009
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A massive European effort to develop high-brightness semiconductor lasers could transform healthcare, telecoms and display applications and make Europe an undisputed leader in the field.
Optics & Photonics
Jun 18, 2009
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