Johns Hopkins students create high-heeled prosthetic
The Baltimore Sun

pollution control

A pollution control device attached to the smokestack of a locomotive is tested at the Union Pacific rail yard in Roseville, Calif. The ports of Los Angeles and Long Beach and their partners have handed out nearly $40 million in the last two years to stimulate the development of similar devices and systems to reduce emissions and fuel consumption.Steve Yeater / For The Times
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