News tagged with speed

Big sperm don't always win the race

When females mate with more than one male, each one's sperm has to compete to get to her eggs. Until now, researchers had thought the fastest sperm would dominate.

dateJan 31, 2014 in Evolution
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Elucidating heavy precipitation events

It is difficult to forecast heavy precipitation events accurately and reliably. The quality of these forecasts is affected by two processes whose relative importance has now been quantified by a team at the ...

dateNov 29, 2013 in Earth Sciences
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Review: 'Rivals' a fast, furious 'Need for Speed'

It's no secret the light launch lineup for next-generation consoles leaves a little something to be desired. However, there's at least one game that's sure to get next-generation owners' engines running—and ...

dateNov 19, 2013 in Software
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Explainer: The engineering challenges of HS2

Next year, high-speed rail travel will celebrate its 50th birthday. In 1964, Japan put into service the first Shinkansen line, from Tokyo to Osaka. Its trains initially operated at speeds of up to 210 km/h ...

dateNov 19, 2013 in Engineering
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On-chip quantum buffer realized

Nippon Telegraph and Telephone Corp. has realized a quantum buffer integrated on an optical waveguide. The buffer is based on the "slow light effect", where the propagation speed of a pulsed light in a special ...

dateNov 13, 2013 in Quantum Physics
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