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Sharks have spiral-like intestines that resemble one of Nikola Tesla's inventions

Sharks have spiral-like intestines that resemble one of Nikola Tesla's inventions
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Sharks' spiral-shaped intestines resemble a Nikola Tesla invention


Samantha Leigh/California State
Sharks have spiral-shaped intestines that work in a similar way to an unusual valve designed by Nikola Tesla. Studying their anatomy could help improve industrial fluid-pump technology.
Most animals have tubular intestines that use muscle contractions to push food along like squeezing a tube of toothpaste. But sharks slowly channel their meals through spirals without needing muscles to push the food. Their intestines are also shaped in a way that only allows food to flow one way – like a performance-enhanced Tesla valve, says Samantha Leigh at California State University Dominguez Hills.
“Sharks have all these different little tweaks to the Tesla valve design that could be making them more efficient,” she says. ....

Azorian Islandsspot , Nikola Tesla , Natural History Museum Of Los Angeles , Proceedings Of The Royal Society , Christa Lest , Samantha Leigh , California State University Dominguez , Natural History Museum , Los Angeles County , Mummified Inca , நிகோலா டெஸ்லா , இயற்கை வரலாறு அருங்காட்சியகம் ஆஃப் லாஸ் ஏஞ்சல்ஸ் , சமந்தா லே , கலிஃபோர்னியா நிலை பல்கலைக்கழகம் டமிஂகெஸ் , இயற்கை வரலாறு அருங்காட்சியகம் , லாஸ் ஏஞ்சல்ஸ் கவுண்டி ,

New 3D images of shark intestines show they function like Nikola Tesla's valve


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IMAGE: A CT scan image of the spiral intestine of a Pacific spiny dogfish shark (Squalus suckleyi). The beginning of the intestine is on the left, and the end is on.
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Credit: Samantha Leigh/California State University Dominguez Hills
Contrary to what popular media portrays, we actually don t know much about what sharks eat. Even less is known about how they digest their food, and the role they play in the larger ocean ecosystem.
For more than a century, researchers have relied on flat sketches of sharks digestive systems to discern how they function and how what they eat and excrete impacts other species in the ocean. Now, researchers have produced a series of high-resolution, 3D scans of intestines from nearly three dozen shark species that will advance the understanding of how sharks eat and digest their food. ....

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