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Your search has returned 2 articles:
  • Science & the Public

    Growth-promoting antibiotics: On the way out?

    In 1950, Science News ran a story showing for the first time that a potent antibiotic could do more than knock out disease. New animal experiments, we reported, “cast the antibiotic in a spectacular new role” as a livestock growth promoter. Lacing the food of hogs with trace quantities of this drug increased meat yields by up to 50 percent, scientists at Lederle Laboratories had reported at a...

    03/23/2012 - 13:30 Humans & Society, Nutrition, Earth & Environment, Biomedicine, Agriculture
  • News

    Spinning Fine Threads: Silkworms coerced to make better silk

    The caterpillars that spin commercial silk can make much tougher or more elastic threads, depending on how fast they're forced to spin.

    If this research finding is translated into a marketable process for obtaining silk, the fibers could rival those of widely acclaimed but commercially impractical spider silk, says Fritz Vollrath of Oxford University.

    Many scientists hold...

    08/14/2002 - 10:03 Materials