Nature research paper: Engineered jumpers overcome biological limits via work multiplication
, The centre-of-mass kinetic energy, specific to the jumper mass., The acceleration time. The simulations are performed for spring mass ratios of ranging from 0.001–10. A lower mass ratio lowers the produced energy specific to the total mass and also imposes an upper bound on size, as smaller springs cannot match larger weight forces. The acceleration time scales nearly linearly with the size, and bigger springs create faster jumps.
, Schematic and pictures of the minimalistic release mechanism for unlatching. During winding of the string, the motor shaft turns, pulling the string over a shaft supported by bearings in the arm and compressing the hybrid spring-linkage. With further winding, a lever on the string eventually hits the latch, prying it open. The arm swings open, allowing the string to unspool from the shaft., Self-righting mechanism.
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