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29:28
The Amazing Engineering of Rescue Helicopters - Smarter Every Day 289
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How to Make Pizza on a Submarine - Smarter Every Day 246
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Fails You May Have Missed | Instant Regret 😔
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STRAPPED INTO A FALLING HELICOPTER - Smarter Every Day 154
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Why Snatch Blocks are AWESOME (How Pulleys Work) - Smarter Every Day 228
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US Coast Guard Rescue Swimmer Gear - Smarter Every Day 279
18:59
Inside the B-17 Ball Turret
16:57