Scientists discovered that sperm tails change shape to propel the substance through fluid
The flexibility of the tail must consume more energy and hinder movement
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Scientists say they have discovered that the way sperm swim defies the laws of physics.
Researchers at Kyoto University discovered that the flagellum, or sperm tail, propels the agent forward by changing its shape to interact with fluid.
Sperm does not cause an equal and opposite reaction from the surrounding environment. Experts say that this method of movement is contrary to Newton’s law of motion which states that there are reactions of equal magnitude and opposite direction.
The flexibility of the flagella also means that there should be no movement at all, but instead the sperm will flap its tail without releasing much energy into its surroundings.
Researchers at Kyoto University discovered that the flagellum, or sperm tail, propels the agent forward by changing its shape to interact with fluid.
The team used human sperm cells and algae in this study because both have flagella that help them move through fluids. new world Report.
The tail is flexible and can change shape and return to its original shape, which should not be able to push the swimming material through the surrounding fluid that acts as a barrier.
The algae and sperm cells were analyzed under a microscope, where researchers found that the pair used their tails to move in wave-like movements pushing and pulling them through the fluid environment.
In the case of Newton’s laws of motion, the movement must ultimately slow down the swimmer’s movement.
Flapping the sperm’s tail should lose energy because it changes shape with the surrounding environment, but when flapping, the flagella avoids an equal and opposite reaction and thus saves energy.
By bending slightly in response to fluid administration, the flagella manage to avoid an equal and opposite reaction, thereby conserving their owner’s energy.
Researchers call this ability “individual resilience.”
“Singular elasticity is not a general term for the activity of solids, but is a well-defined physical mechanism that generates active forces in solids or other systems for which general elasticity can be defined without resorting to elastic potential,” according to a study published by Leiden University, which was not involved in this research.
Share or comment on this article: Scientists have discovered for the first time that sperm violates one of Newton’s laws of physics
2023-10-26 21:50:26
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