July 20, 2021, scitechdaily.com: Amazing New 3D Images of Shark Intestines Show They Function Like Nikola Tesla’s Valve Citat: "...From their scans, the researchers discovered several new aspects about how shark intestines function. It appears these spiral-shaped organs slow the movement of food and direct it downward through the gut, relying on gravity in addition to peristalsis, the rhythmic contraction of the gut’s smooth muscle. Its function resembles the one-way valve designed by Nikola Tesla more than a century ago that allows fluid to flow in one direction, without backflow or assistance from any moving parts...", backup
July 20, 2021, scitechdaily.com: Amazing New 3D Images of Shark Intestines Show They Function Like Nikola Tesla’s Valve Citat: "...From their scans, the researchers discovered several new aspects about how shark intestines function. It appears these spiral-shaped organs slow the movement of food and direct it downward through the gut, relying on gravity in addition to peristalsis, the rhythmic contraction of the gut’s smooth muscle. Its function resembles the one-way valve designed by Nikola Tesla more than a century ago that allows fluid to flow in one direction, without backflow or assistance from any moving parts...", backup
