Airplanes zoom overhead, wispy-white contrails streaming behind them. The Federal Aviation Administration (FAA) handled 43,684 flights, on average, every day last year, and U.S. military and commercial flights together used ...
Materials Science
Oct 30, 2017
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22
It's a paradox: Life needs water to survive, but a world full of water can't generate the biomolecules that would have been essential for early life. Or so researchers thought.
Evolution
Nov 3, 2022
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3
Noise abatement is growing in importance, thus, the demand for better acoustic building components raises. Scientists are developing new solutions: aesthetically good looking and flexibly applicable microperforated sound ...
Engineering
Jan 7, 2013
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0
Prof. Wang Zhe, assistant professor at the Hong Kong University of Science and Technology (HKUST)'s Division of Environment and Sustainability, has collaborated with international scientists to reveal the significant roles ...
Earth Sciences
May 30, 2022
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80
Ultrafast laser technologies provide new strategies for remote sensing of atmospheric pollutants and hazardous biochemical agents due to their unique advantages of high peak power, short pulse duration and broad spectral ...
Optics & Photonics
Jun 9, 2022
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14
Microvesicles are smallest cell elements which are present in all body fluids and are different, depending on whether a person is healthy or sick. This could contribute to detecting numerous diseases, such as, e.g., carcinomas, ...
General Physics
Nov 27, 2012
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0
As cosmic ray particles penetrate our atmosphere, they collide with air molecules and produce new high-energy particles. These particles, in turn, are involved in further collisions. The whole process is known as an air shower. ...
Astronomy
Oct 23, 2012
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0
Haze is formed when a cocktail of various gaseous pollutants is oxidized and forms particulate matter diffusing sunlight. This process is mainly mediated by hydroxyl radicals (OH), and researchers have now discovered a new ...
Materials Science
Mar 31, 2022
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127
It's no secret that the emissions leaving a car tailpipe or factory smokestack affect climate and air quality. Even trees release chemicals that influence the atmosphere. But until now, scientists have struggled to know where ...
Earth Sciences
Dec 10, 2009
1
0
Researchers from the University of Copenhagen have discovered a surprising phenomenon in a process by which certain gas molecules produce harmful particles. The impact of this phenomenon is likely to increase in urban areas ...
Analytical Chemistry
Dec 18, 2019
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