Posted January 8, 2013
Heymatt: If fire extinguishers use carbon dioxide to snuff out flames, why is it that the CO2 in expelled breath doesn’t blow out a fire? In fact, blowing on a hot ember usually causes it ...
Dorian Hargrove 7:30 a.m., July 28
Don Bauder 5:30 p.m., July 27
Robert Bush noon, July 27
Matthew Suárez 11:30 a.m., July 27
Dave Rice 8:30 a.m., July 27
Liz Swain 1:30 p.m., July 26
Siobhan Braun 11 a.m., July 26
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