The Ocean is Way Deeper Than You Think

10 insights saved from this video by @nature

@nature
Herbert Nitsch set a 214-meter freediving record on a single breath.
@nature
Redistribute every continent and island into the deepest ocean basins, and Earth would still hold an ocean about two miles deep.
@nature
Humans reached 10,916 meters in 1960, then surfaced after a cracked window ended their 20-minute stay.
@nature
Blue whales dive about 500 meters deep, the same stated depth limit as US Seawolf-class nuclear submarines.
@nature
Only about 5% of the ocean floor has been accurately mapped, leaving deeper undiscovered regions possible.
@nature
At 1,000 meters, ocean pressure compares with standing on Venus and quickly kills an unprotected person.
@nature
The Challenger Deep reaches about 10,994 meters, roughly 300 kilometers southwest of Guam.
@nature
The Hadal Zone begins around 6,000 meters, where pressure reaches about 1,100 times surface pressure.
@nature
The ocean averages 4,267 meters deep, yet its trenches extend substantially farther down.
@nature
At around 100 meters, decompression sickness can become fatal without careful management, even for divers who go deeper.

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