Shark Week: Nikola Tesla and Shark Intestines

Inventor Nikola Tesla was inspired by shark intestines when he developed a valve to push electricity in one direction. Shark intestines have corkscrew-shaped digestive tracks that slow down the passage of food, which helps sharks extract every single calorie from their meals. Researchers had to freeze-dry the shark guts and create a 3D model to be able to see how they worked. It turns out they worked very similarly to the Tesla valve.

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