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16 notícias encontradas para "muscles"
Astronaut flexes his muscles mid-spacewalk | Space photo of the day for July 7, 2026
Astronaut flexes his muscles mid-spacewalk | Space photo of the day for July 7, 2026
NASA astronaut Chris Williams recently flexed his muscles for a photo while on a spacewalk with fellow astronaut Jessica Meir.
Ultrasound imaging turns a robot hand into a skillful mimic
Our hands are the nimblest parts of our bodies, coordinating 34 muscles, 27 joints, and over 100 tendons and ligaments to perform countless nuanced movements and gestures. So far, robots have been notoriously bad at mimicking that dexterity, in part because researchers struggle t
This tiny organism contracts 200 times faster than we can blink—here's how
This tiny organism contracts 200 times faster than we can blink—here's how
A tiny, aquatic, single-celled organism can contract to one-quarter of its body length in less than 5 milliseconds—hundreds of times faster than a human can blink. Researchers have discovered that the organism, Spirostomum ambiguum, uses a calcium-activated protein network in a f
If so many people live with toxoplasmosis, how dangerous is this brain parasite really? Sh
About 1 in 3 people worldwide have been infected with a microscopic parasite called Toxoplasma gondii—or simply "toxo"—which can cause toxoplasmosis. After the initial infection, toxo settles into our muscles and brains, where it can remain for life.