In mathematics, you need at most only four different colors to produce a map in which no two adjacent regions have the same color. Utah and Arizona are considered adjacent, but Utah and New Mexico, which only share a point, ...
Mathematics
Mar 10, 2011
2
0
(PhysOrg.com) -- The latest evidence of the dominant role humans play in changing Earth's climate comes not from observations of Earth's ocean, atmosphere or land surface, but from deep within its molten core.
Earth Sciences
Mar 10, 2011
19
0
Internet company AOL is cutting more than 900 jobs as it joins forces with The Huffington Post and seeks to reinvent itself as a major player in online news.
Business
Mar 10, 2011
0
0
Gamma ray bursts, which are the most powerful bursts of radiation in the universe, have now been observed in direct connection with an exploding giant star - a supernova. Researchers from the Niels Bohr Institute at the University ...
Astronomy
Mar 10, 2011
8
2
Fujitsu today announced the achievement of a 40 gigabits per second (40-Gbps) optical-fiber transmission employing an uncooled directly-modulated laser. This was realized through the combination of a structure specifically ...
General Physics
Mar 10, 2011
1
0
NEC Corporation, in cooperation with The University of Tokyo and the National Institute of Information and Communications Technology, announced today the successful demonstration of terahertz wave image measurement technologies ...
Engineering
Mar 10, 2011
0
0
Iowa State University's Sri Sritharan is just back from studying the damage caused by the Feb. 22 earthquake that hit Christchurch, New Zealand, and killed more than 160 people.
Engineering
Mar 10, 2011
0
0
By studying the tolerance of marine invertebrates to a wide range of temperature and pressure, scientists are beginning to understand how shallow-water species could have colonised the ocean depths.
Plants & Animals
Mar 10, 2011
3
0
Preserving an intact population of weed-eating fish may be vital to saving the world's coral reefs from being engulfed by weed as human and climate impacts grow.
Ecology
Mar 10, 2011
0
0
How fast an intense laser pulse can change the electrical properties of solids is revealed by researchers from Kiel University in the current edition of Nature.
General Physics
Mar 10, 2011
0
0
