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Stingers Have Achieved Optimal Pointiness, Physicists Show

Stingers Have Achieved Optimal Pointiness, Physicists Show Scott Hershberger The spines of a cactus, the proboscis of a mosquito, the quills of a porcupine: straight, pointed objects serve a plethora of functions in nature. Yet no matter the size, from bacteriophages’ nanometer-scale tail fibers to narwhals’ two- or three-meter-long tusk, these structures tend to be…