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This Hurricane-Tracking Tech Is Made In Colo.; New Docu Film Follows The Dawn Wall Climb

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Predicting the path hurricanes will take when they're still over open ocean is tricky. That's why scientists use dropsondes, paper towel tube-shaped devices that are dropped into storms from planes. Next, a documentary follows Tommy Caldwell's climb up the Dawn Wall on El Capitan. Finally, the second episode of Purplish explores Jared Polis' money.