Though they are discrete particles, water molecules flow collectively as liquids, producing streams, waves, whirlpools, and other classic fluid phenomena.
General Physics
Jul 6, 2022
1
2087
Currently, there are no specific guidelines on the most effective materials and designs for facemasks to minimize the spread of droplets from coughs or sneezes to mitigate the transmission of COVID-19. While there have been ...
General Physics
Jun 30, 2020
13
11368
(Phys.org) -- A new study of termites has revealed that older workers are equipped with suicide packs of chemicals on their backs to fight off intruders.
Turbulence makes many people uneasy or downright queasy. And it's given researchers a headache, too. Mathematicians have been trying for a century or more to understand the turbulence that arises when a flow interacts with ...
General Physics
Nov 16, 2021
0
687
Underwater surfaces can get grimy as they accumulate dirt, algae and bacteria, a process scientists call "fouling." But furry mammals like beavers and otters that spend most of their lives wet manage to avoid getting their ...
Plants & Animals
Jan 11, 2024
2
444
Gas bubbles in a glass of champagne, thin films rupturing into tiny liquid droplets, blood flowing through a pumping heart and crashing ocean waves—although seemingly unrelated, these phenomena have something in common: ...
General Physics
Jun 10, 2016
1
2819
Ordinary sound waves—small oscillations of density—can propagate through all fluids, causing the molecules in the fluid to compress at regular intervals. Now physicists have theoretically shown that in one-dimensional ...
Face masks reduce the risk of spreading large COVID-linked droplets when speaking or coughing by up to 99.9 percent, according to a lab experiment with mechanical mannequins and human subjects, researchers said Wednesday.
General Physics
Dec 23, 2020
21
6323
(PhysOrg.com) -- Computers of the future could be operating not on electrons, but on tiny waves traveling through an electron "fluid," if a new proposal is successful. The new circuit design, recently introduced by Dr. Héctor ...
Cicadas are the soundtrack of summer, but their pee is more special than their music. Rather than sprinkling droplets, they emit jets of urine from their small frames. For years, Georgia Tech researchers have wanted to understand ...
Soft Matter
Mar 11, 2024
1
415
