What It's Like Swimming With A 6000 Pound Shark

Tom 'Blowfish' Hird talks swimming with one of the ocean's largest creatures and what else to expect from Shark Week on the Discovery Channel. Watch!
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Can NYC Finally Cool Its Subway?
Why is the NYC subway platform so hot? One rider built his own sensor network to find out. We explore the geothermal fix the MTA is piloting right now.
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