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Tag: the bends

How goats got the bends, a new ship for VIMS, a new deep-sea submersible for all of us, our looming destruction, and more! Monday Morning Salvage: October 15, 2018.

Posted on October 15, 2018 By Andrew Thaler
Weekly Salvage

Foghorn (A Call to Action!)

  • It ain’t going to be easy, but it isn’t over yet and none of us have earned the right to quit. What genuine, no-bullshit ambition on climate change would look like.

Flotsam (what we’re obsessed with right now)

  • Goats are magnificent. We don’t deserve goats. The Dark Story of How Scientists Used Goats to Solve the Bends.
Bends in the foreleg of a goat after experiments performed by physiologist John S. Haldane, published in the Journal of Hygiene Vol. 8, 1908.
Bends in the foreleg of a goat after experiments performed by physiologist John S. Haldane, published in the Journal of Hygiene Vol. 8, 1908.
  • There’s a new full-ocean capable submarine in town, and for $50 million, you could buy it! Discovery and Science Channel to Document the Five Deeps Expedition in Limited Series.
Submersible. Photo courtesy Discovery.
Photo courtesy Discovery.

Read More “How goats got the bends, a new ship for VIMS, a new deep-sea submersible for all of us, our looming destruction, and more! Monday Morning Salvage: October 15, 2018.” »

The horrifying physiological and psychological consequences of being Aquaman

Posted on October 25, 2017 By Andrew Thaler
Popular Culture

This is an update and repost of our seminal article on the science of Aquaman, revised and expanded. 


Aquaman. DC Comics.
Aquaman. DC Comics. A rational response to seal poaching is to lob a polar bear at the aggressors.

Aquaman may not be everybody’s favorite superhero, but since his creation in 1941, he has been among DC’s most enduring icons. During the Golden Age of comics, he held his own against Superman, Batman, and Wonder Woman. Silver Age Aquaman was a founding member and eventually leader of the Justice League. His powers, tied to the ocean, forced writers to create a compelling, complex hero with explicit limitations. In the early days, when Superman’s strength was practically infinite, and Batman’s brilliance was unmatched, Aquaman had to become more than just a superhero, he had to be a person.

If Superman existed to show us how high the human spirit could fly, and Batman to show us the darkness within even our most noble, Aquaman is here to show us the world that triumphs in our absence. The ocean is not ours, and no matter how great our technology, we will never master it as we have mastered land. Aquaman has. Through this lonely ocean wanderer, we can experience a world that we can never truly command. In many ways, Aquaman was stronger than the Man of Steel and darker than the Dark Knight. He knew loneliness that the orphan and the alien exile never could.

Even though Aquaman had to fight harder, endure the jokes of other, less interesting heroes, and find relevance in an ecosystem hostile to the humans that had to empathize with him, Aquaman was never forced to confront the truly horrifying consequences of life in the ocean.

The penetrating cold

Aquaman is, for all intents and purposes, a marine mammal. With the exception of a healthy mane in later incarnations, he is effectively hairless. As a human, we would expect his internal body temperature to hover around 99°F, or about 37°C. Even at its warmest points, the surface temperature of the ocean around the equator is only about 80°F/27°C. At the poles, ocean temperature can actually drop a few degrees below freezing. In the deep sea, ambient temperature levels out around 2 to 4°C. The ocean is cold, and water is a much better thermal conductor than air. Warm blooded species have evolved many different systems to manage these gradients, including countercurrent heat exchangers, insulating fur, and heavy layers of blubber. This is what a marine mammal that can handle cold waters look like:

Elephant Seal. NSF, photo by Mike Usher

Aquaman is not just a human, he is an atypically uninsulated human. If the man has more than 2% body fat, I’d be shocked. In contrast, warm-water bottlenose dolphins have at least 18 to 20% body fat. Anyone who SCUBA dives knows that, even with a 12 millimeter neoprene wet suit, after a few hours in 80°F water, you get cold. Aquaman, lacking any visible insulation, should have slipped into hypothermia sometime early in More Fun Comics #73. He is built for the beach rather than the frigid deep.

Jason Momoa is not a man blessed with an over-abundance of “bioprene”.

Read More “The horrifying physiological and psychological consequences of being Aquaman” »

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