Quantcast

Latest David M. Ward Stories

7652049e7d6d639e9f79485599cf223c1
2007-07-26 14:05:00

WASHINGTON -- The wonderland known as Yellowstone National Park has yielded a new marvel - an unusual bacterium that converts light to energy. The discovery was made in a hot spring at the park where colorful mats of microbes drift in the warmth. "This thing was just bizarre," David M. Ward, a professor of microbial studies at Montana State University, said of the bacterium. Plants use photosynthesis to turn light into energy, of course, and so do some other bacteria. But, Ward said, the...


Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
Related