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Microscopic Swimmers

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"Sperm Defies Laws of Physics, Baffling Scientists"
science-and-technology2 years ago

"Sperm Defies Laws of Physics, Baffling Scientists"

A recent study has found that human sperm and single-celled algae defy Newton's third law of motion as they move through viscous fluids, due to non-reciprocal interactions and odd elasticity in their whip-like tails. The study, published in PRX Life, analyzed experimental data on sperm and modeled the motion of algae to decipher the internal mechanics of their flagella, potentially aiding in the design of self-assembling robots and understanding collective behavior.