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Microscopic Swimmers

All articles tagged with #microscopic swimmers

science5 months ago

Scientists Discover Sperm Cells Challenging Newton's Law

A recent study reveals that human sperm can swim through viscous fluids in a way that defies Newton's third law, thanks to a property called odd elasticity, which allows them to generate propulsion without the typical opposing forces, with implications for designing efficient microscopic robots and understanding collective behavior in nature.

science-and-technology1 year 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.