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  1. Physics

    Electronic Soup: Molecules in acid broth act as circuit parts

    An electronically promising molecule functions well in acid as a tiny amplifier, underscoring the importance of controlling molecules' electrochemical environments to achieve predictable performance.

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  2. Humans

    Letters from the February 26, 2005, issue of Science News

    Let’s move it, people When I read of the Hubble Space Telescope–repair controversy (“People, Not Robots: Panel favors shuttle mission to Hubble,” SN: 12/18&25/04, p. 388; “Lean Times: Proposed budget keeps science spending slim,” SN: 2/12/05, p. 102), this question comes to mind: Why can’t an unmanned, powered vehicle latch on to Hubble and fly […]

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  3. Shrinking at Sea: Harvesting drives evolution toward smaller fishes

    In response to fishing, numerous fish species have evolved to be smaller and to grow more slowly, creating populations of fish that are poor at reproducing and inefficient at bulking up.