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The Scientist

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image: Animal Electricity, circa 1781

Animal Electricity, circa 1781

By Jessica P. Johnson | September 28, 2011

How an Italian scientist doing Frankenstein-like experiments on dead frogs discovered that the body is powered by electrical impulses.

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image: Making the Gradient

Making the Gradient

By Karen Hopkin | May 25, 2011

Ron Kaback didn’t believe that electrochemical gradients could power the transport of sugars and amino acids across cell membranes—until he proved that they do.

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