What If You Were Caught in a Riptide?

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Every year, beach lifeguards rescue tens of thousands of people. Four out of five times, it's from these rip currents, also called riptides. If you see the water do this, get out fast. If you don't, you might get caught in a riptide. What are the warning signs? Which direction should you swim if you want to survive? And what's pulmonary edema?

Transcript and sources:

00:00 What If You Were Caught in a Riptide?
00:29 How do you spot one?
01:02 What are rip currents?
02:17 Getting caught
04:03 Pulmonary edema

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What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure through time, space and chance while we (hopefully) boil down complex subjects in a fun and entertaining way.

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