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Helmholtz contributed through mathematcis, physicology, optics and acoustics (wherein he measured the speed of light in the retina), Biology and chemistry. His most significant contribution is his precise measurement of nerve impulses when he proved this with the experiment of the frog leg that he electrically stimulated. The frog leg, although not attached moved. He was able to compute the exact time of when he administered the stimulation to the time it took for the leg to move, thereby calculating to the exact seconds the speed of nerve impulses.

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15y ago

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