Uncategorized

  1. Chemistry

    Secret of strong silk

    By controlling the amount of water in their glands, spiders and silkworms prevent their silk proteins from crystallizing prematurely.

    By Alexandra Goho
  2. Earth

    Exposure to phthalate may shorten pregnancy

    Babies exposed to a common phthalate plasticizer before birth spend a week less in the womb than do those without evidence of exposure.

    By Ben Harder
  3. Tech

    Memory Enhancers

    Engineers take aim at increasing the density of data storage on magnetic media.

    By Jessica Gorman

  4. 19271

    There is a striking similarity in the wave patterns of the ash plume on the cover of the Sept. 13 issue (above) and those in the gas of the Perseus Cluster (“A Low Note in Cosmos: Sounding out a new role for black holes,” SN: 9/13/03, p.