Earth's magnetic field could flip within a human lifetime
Imagine the world waking up one morning to discover that all compasses pointed south instead of north.
Space Exploration
Oct 14, 2014
35
1
News tagged with reversibility
Scientists achieve major breakthrough in preserving integrity of sound waves
In a breakthrough for physics and engineering, researchers from the Photonics Initiative at the Advanced Science Research Center at The Graduate Center, CUNY (CUNY ASRC) and from Georgia Tech have presented the first demonstration ...
Quantum Physics
Jul 17, 2020
5
1593
Physicists harness quantum 'time reversal' to measure vibrating atoms
The quantum vibrations in atoms hold a miniature world of information. If scientists can accurately measure these atomic oscillations, and how they evolve over time, they can hone the precision of atomic clocks as well as ...
Quantum Physics
Jul 14, 2022
2
1629
Time reversal findings may open doors to the future
(Phys.org)—Imagine a cell phone charger that recharges your phone remotely without even knowing where it is; a device that targets and destroys tumors, wherever they are in the body; or a security field that can disable ...
General Physics
Feb 21, 2013
49
0
Time's quantum arrow has a preferred direction: BaBar experiment confirms time asymmetry
(Phys.org)—Time marches relentlessly forward for you and me; watch a movie in reverse, and you'll quickly see something is amiss. But from the point of view of a single, isolated particle, the passage of time looks the ...
General Physics
Nov 19, 2012
172
0
Metamaterial prism creates a reverse rainbow
(Phys.org)—In a normal rainbow, red is always on "top" while violet is on the "bottom." This is true whether the rainbow is created by a glass prism or by water droplets in the sky, and is due to the way that these materials ...
Thermal chaos returns quantum system to its unknown past
Building on last year's breakthrough 'time reversal' experiment, two researchers from the Moscow Institute of Physics and Technology and Argonne National Laboratory have published a new theoretical study in Communications ...
Quantum Physics
Aug 6, 2020
8
503
Study demonstrates desalination with nanoporous graphene membrane
Less than 1 percent of Earth's water is drinkable. Removing salt and other minerals from our biggest available source of water—seawater—may help satisfy a growing global population thirsty for fresh water for drinking, ...
Nanomaterials
Mar 25, 2015
16
1593
Lima billboard is tapped for drinking water
(Phys.org)—A billboard in Lima, Peru, created by ad agency Mayo DraftCFB in collaboration with the University of Engineering and Technology (UTEC), captures the air's humidity and turns it into potable water for Lima residents. ...
Evidence for broken time-reversal symmetry in a topological superconductor
Chiral superconductors are unconventional superconducting materials with distinctive topological properties, in which time-reversal symmetry is broken. Two of the first materials to be identified as chiral superconductors ...
