Science: The Pied Piper of Hamburg

An unsportsmanlike plot, involving a low trick on fish, is being cooked up by Dr. Konrad Kreutzer, a well-known German physicist. According to an official report last week in the U.S. Department of Commerce's Foreign Commerce Weekly, Dr. Kreutzer put two electrodes in the water of Lake Constance, passed a current between them, and observed (as had been observed before) that fish in such a spot tend to head toward the positive electrode. He also observed that an increase in the current made their tails wiggle. This gave him his big idea. When a fish's tail wiggles back & forth, the...

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