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Collecting light with artificial moth eyes

All over the world researchers are investigating solar cells which imitate plant photosynthesis, using sunlight and water to create synthetic fuels such as hydrogen. Empa researchers have developed such a ...

dateJun 18, 2014 in Nanophysics
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The rise and fall of oxygen

How long has Earth's atmosphere included oxygen? A recent paper suggests low levels of oxygen appeared in the atmosphere approximately 2.95 billion years ago. That's about 550 million years earlier than p ...

dateDec 11, 2013 in Earth Sciences
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Slaying bacteria with their own weapons

The Centers for Disease Control and Prevention warned last fall that the U.S. faces "potentially catastrophic consequences" if it doesn't act quickly to combat the growing threat of antibiotic-resistant infections, ...

dateJun 26, 2014 in Cell & Microbiology
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