News tagged with traffic signals

Chinese city blanketed in heavy pollution

Choking clouds of pollution blanketed a Chinese city famed for its annual ice festival Monday, reports said, cutting visibility to 10 metres (33 feet) and underscoring the nation's environmental challenges.

Oct 21, 2013
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UK explores TV transmitter option to track aircraft

(Phys.org)—UK's Technology Strategy Board, a government agency looking for innovative ways of using technology, is funding research into a new way of locating and tracking aircraft. The research project ...

Feb 13, 2013 weblog
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