That's because he suspected that friction plays a much more pivotal role in the case of a finger snap than it does in other LaMSA systems.
But Bhamla couldn't dispel the nagging thought that perhaps Thanos wouldn't have been able to produce a snap at all while wearing the metal glove. In the film, uber-villain Thanos collects all six Infinity Stones, places them into the metal Infinity Glove, and proceeds to wipe out half of all life in the universe with a single snap of his fingers. But the impetus for the current study is partially due to Bhamla's viewing of Infinity War in 2018. Advertisementīhamla and his co-authors are interested in studying these surprisingly powerful and ultrafast motions. The shrimp's muscles pull on a saddle-shaped structure in the arm, causing it to bend and store potential energy, which is released with the swinging of the club-like claw. In the case of the mantis shrimp's powerful punch, small structures in the muscle tendons called sclerites serve as the latch. Several small organisms are capable of producing ultrafast moves through a similar latching mechanism: frogs' legs and chameleons' tongues, for instance, as well as exploding plant seeds, multiple termite species, and the mandibles of trap-jaw ants. When the latch is rapidly released, all the stored potential energy is released over a short period of time. "It's really an extraordinary physics puzzle right at our fingertips that hasn't been investigated closely."įinger snaps are essentially a latch-like mechanism (technically, Latch-mediated spring actuation, or LaMSA), in which energy is loaded in a mass-spring system, held in place with a latch. "For the past few years, I've been fascinated with how we can snap our fingers," said co-author Saad Bhamla, an engineer at Georgia Tech. But could the intergalactic warlord have managed to snap his fingers at all while wearing that cumbersome metal Infinity Glove? That question inspired a new paper published in the Journal of the Royal Society Interface, exploring the biomechanics of the finger snap, particularly the role of friction. The Marvel Cinematic Universe was dramatically altered at the end of Avengers: Infinity War with an infamous snap of Thanos' fingers. A snapping finger produces the highest rotational accelerations observed in humans, according to a new study.
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