Science News

n1vux on 2005-05-07T01:47:39

Planetoid busted for going wrong way in a one-way orbit.
- Cassini and other studies lend extra credence to theory that Saturn's retrograde moon Phoebe is an early object but late capture.
- From Wired on Phoebe , and via AAAS Science magazine's " Phoebe's Dark Chilly Birth"



Earth's Gravity Scar
«A new ESA study predicts that the devastating Sumatran earthquake, which resulted in the tragic tsunami of 26 December 2004, will have left a 'scar' on Earth's gravity that could be detected by a sensitive new satellite, due for launch next year.»

- ESA "Earth's Gravity Scar" (with pictures) via Science Daily



New Postage Stamps Honor Four Scientists
USPO honors four scietists -  Josiah Willard Gibbs, Barbara McClintock, John von Neumann, Richard P. Feynman.

- Wapo



Physicists detect the undetectable: 'baby' solitary waves
«When University at Buffalo theorist Surajit Sen published his prediction that solitary waves, tight bundles of energy that travel without dispersing, could break into smaller, "baby" or secondary solitary waves, experts in the field acclaimed it as a fine piece of work. They also felt that these waves might never be seen experimentally. But Sen and his colleagues have done just that. »

- Solitary waves or Solitons were discovered by John Scott Russell in the Victorian canals in 1834. They've been used for modelling littoral waves and tsuanmi, as well as studied in electromagnet waves and by this author in particulate waves.

Physical Review Letters / NSF via PhysOrg  and  EurekAlert
References -Solitary Wave Calculator; WHOI Workshop on Solitary Waves