Morning Overview on MSN
Rip currents can outswim Olympians and cause about 100 US deaths a year
A narrow stream of water flowing away from a beach can move faster than an elite swimmer and exhaust anyone who tries to ...
Travel and Tannins on MSN
Ships crossing Panama are lifted 85 feet uphill and back down again, and the whole system runs without a single pump
Most people picture the Panama Canal as a ditch: a channel cut through the ...
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