News tagged with city traffic

Clamorous city blackbirds

(Phys.org)—Animals have developed a variety of strategies for dealing with increasing noise pollution in their habitats. It is known, for example, that many urban birds sing at a high pitch to differentiate their song from ...

dateJan 11, 2013 in Plants & Animals
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Problems plague new air traffic control computers

(AP) -- New computers crucial to modernizing the U.S. air traffic control system have run into serious problems and may not be fully operational by the end of this year when the current system is supposed to be replaced, ...

dateApr 21, 2010 in Other
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