(Phys.org) —Besides understanding how much dark matter and dark energy there is—about 95 percent of the universe—scientists also want to know more about what dark matter and dark energy are not, as opposed to what they ...
General Physics
Mar 7, 2013
14
0
Spintronics is a form of signal processing similar to that used in traditional electronics, but it takes advantage of a property of electrons known as spin. Spin is often visualized as an arrow about which the electron rotates, ...
General Physics
Jan 30, 2013
0
0
(Phys.org)—Scientists working with NASA's 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, Calif., have generated a series of radar data images of a three-mile-long (4.8-kilometer) asteroid that made its ...
Space Exploration
Dec 17, 2012
6
0
Though it was first suggested well over a century ago, the hypothesis that changes in Earth’s orientation relative to its orbit influence the growth and decline of ice sheets was only recently tested.
Earth Sciences
Jan 11, 2012
3
1
(PhysOrg.com) -- Planets orbiting a sun generally, but not always spin on their axis. Some spin east to west, others west to east. Those that don’t spin are said to be tidal locked with their sun; always showing it ...
