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Engineers solve longstanding problem in photonic chip technology: Findings help pave way for next generation of computer chips |
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Stretching for thousands of miles beneath oceans, optical fibers now connect every continent except for Antarctica. But although optical fibers are increasingly replacing copper wires, carrying information via photons instead of electrons, today's computer technology still relies on electronic chips. Now, researchers are paving the way for the next generation of computer-chip technology: photonic chips. |
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Large variations in Arctic sea ice: Polar ice much less stable than previously thought, study finds |
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For the last 10,000 years, summer sea ice in the Arctic Ocean has been far from constant. For several thousand years, there was much less sea ice in The Arctic Ocean -- probably less than half of current amounts, according to a new study. |
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Water flowing on Mars, NASA spacecraft data suggest |
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Observations from NASA's Mars Reconnaissance Orbiter have revealed possible flowing water during the warmest months on Mars. |
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Light shed on South Pole dinosaurs |
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Bones of South Pole dinosaurs grew like the bones of other dinosaurs, helping explain why dinosaurs were able to dominate the planet for 160 million years, new research shows. |
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Females can place limits on evolution of attractive features in males, research shows |
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Female cognitive ability can limit how melodious or handsome males become over evolutionary time, biologists have observed. Males across the animal world have evolved elaborate traits to attract females, from huge peacock tails to complex bird songs and frog calls. But what keeps them from getting more colorful feathers, longer tails, or more melodious songs? |
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