Uncategorized

  1. Astronomy

    Bow-wowing them with radar

    The sharpest radar image ever of an asteroid shows features on 1999 KW4 as small as 7.5 meters—about the length of a stretch limo.

    By Ron Cowen

  2. From the July 25, 1931, issue

    98-TON BUTTERFLY VALVE, A SIMPLE DEVICE A good place for a photographer to take a picture, this penstock will be serving an even better purpose when it begins to carry water through the dam to turn the huge turbines of the Ruskin power plant, British Columbia. The flow of water through this 19-foot-diameter intake pipe […]

    By Science News
  3. Planetary Science

    Space Flight Basics

    For armchair space explorers, NASA’s Jet Propulsion Laboratory offers a tutorial on how to operate an interplanetary space mission.