Optical activity—rotation of the polarization of light—is well known to occur within materials that differ from their mirror image. But what happens if this symmetry is broken by the direction of illumination rather than ...
Optics & Photonics
Apr 5, 2016
0
53
(Phys.org)—A team of researchers with members from Los Alamos National Laboratory, MIT and the University of Tokyo, has found evidence that suggests elastic disturbance caused by one earthquake may be one of the causes ...
The arrival of intense cold similar to the weather that raged during the "Little Ice Age", which froze the world during the 17th century and in the beginning of the 18th century, is expected in the years 2030 to 2040. These ...
Earth Sciences
Jul 17, 2015
30
317
A new model of the Sun's solar cycle is producing unprecedentedly accurate predictions of irregularities within the Sun's 11-year heartbeat. The model draws on dynamo effects in two layers of the Sun, one close to the surface ...
Space Exploration
Jul 9, 2015
41
1616
(Phys.org)—Earth scientist Nick Teanby with the University of Bristol in the U.K. has come up with a novel way to measure seismic waves traveling through the under-surface of Mars—use data from meteorite impacts. In his ...
Just as waves ripple across a pond when a tossed stone disturbs the water's surface, gravity waves ripple toward space from disturbances in the lower atmosphere.
Space Exploration
May 13, 2015
1
116
Detecting an "earthquake" on Venus would seem to be an impossible task. The planet's surface is a hostile zone of crushing pressure and scorching temperatures—about 874 degrees F, hot enough to melt lead—that would destroy ...
Space Exploration
Apr 23, 2015
0
267
When a 7.9-magnitude earthquake struck central China's Sichuan province in 2008, seismic waves rippled through the region, toppling apartment houses in the city of Chengdu and swaying office buildings 1,000 miles away in ...
Earth Sciences
Mar 16, 2015
0
122
A radio galaxy is a galaxy that emits large amounts of radio waves. They were first discovered in the 1950s, but it wasn't until the 1960s when a technique known as aperture synthesis was developed that we could resolve the ...
Astronomy
Sep 9, 2014
1
1
The European Space Agency (ESA) recently captured stunning images of the earthquake that occurred in California's Napa Valley region on August 24, 2014. The earthquake was the largest to rattle northern California in 25 years.
Earth Sciences
Sep 4, 2014
0
0
