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Researchers at the Massachusetts Institute of Technology have come up with an app called SignalGuru that predicts when signals will change from red to green.
Wednesday - 09/19/2012, 06:15am EDT
, September 21, 2014
Now: 79 °FToday: Some sun, warm and humid; a p.m. t-storm
Hi: 85 °F | Lo: 60 °F