Nanobubbles are extremely small (i.e., nanoscopic) gaseous cavities that some physicists observed in aqueous solutions, typically after specific substances were dissolved in them. While some studies reported the observation ...
(Phys.org) —The surface of Mars is full of activity, with dust storms, dust devils, and drifting dunes in constant motion. Scientists suspect that similarly rich activity may exist underneath the surface, even though it ...
Active matter systems feature unique behaviors that include collective self-assembly structures and collective migration. However, the efforts to realize collective entities in spaces without wall-adhered support, in order ...
Graphene excels at removing contaminants from water, but it's not yet a commercially viable use of the wonder material.
Nanomaterials
Apr 14, 2021
3
1552
Where does snow come from? This may seem like a simple question to ponder as half the planet emerges from a season of watching whimsical flakes fall from the sky—and shoveling them from driveways. But a new study on how ...
Earth Sciences
Mar 22, 2021
3
4769
There are fossils, found in ancient marine sediments and made up of no more than a few magnetic nanoparticles, that can tell us a whole lot about the climate of the past, especially episodes of abrupt global warming. Now, ...
Earth Sciences
Feb 1, 2021
0
722
Observations of Earth's atmosphere show that thunderstorms are often stronger in the presence of high concentrations of aerosols—airborne particles too small to see with the naked eye.
Earth Sciences
Jan 4, 2021
1
137
Air-quality alerts often include the levels of particulate matter, small clumps of molecules in the lower atmosphere that can range in size from microscopic to visible. These particles can contribute to haze, clouds, and ...
Environment
Nov 25, 2019
0
198
Using an atomic-force microscope fitted with an electrode tip 1,000 times smaller than a human hair, University of Oregon researchers have identified in real time how nanoscale catalysts collect charges that are excited by ...
Materials Science
Oct 7, 2019
0
225
Science fiction stories are chock full of terraforming schemes and oxygen generators for a very good reason—we humans need molecular oxygen (O2) to breathe, and space is essentially devoid of it. Even on other planets with ...
Materials Science
May 24, 2019
2
1192
