Atoms can absorb and reemit light—this is an everyday phenomenon. In most cases, however, an atom emits a light particle in all possible directions—recapturing this photon is, therefore, quite hard.
Optics & Photonics
Jan 16, 2024
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171
When light goes through a material, it often behaves in unpredictable ways. This phenomenon is the subject of an entire field of study called "nonlinear optics," which is now integral to technological and scientific advances ...
Optics & Photonics
Jan 11, 2024
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88
Brazil's President Luiz Inacio Lula da Silva on Thursday vetoed key parts of a controversial law that is set to loosen the rules around the use of pesticides in the country.
Environment
Dec 29, 2023
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57
Giant-impact driven redox processes in the atmosphere and magma ocean may have played crucial roles during the evolution of the Earth. However, the absence of rock records from the time or era makes it challenging to understand ...
Magnesium alloys hold promise as a lightweight material to reduce weight in automobiles and transportation systems, offering potential to enhance fuel economy and reduce emissions, but low formability and strength prevent ...
Analytical Chemistry
Dec 19, 2023
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1
Research appearing in ACS Nano reveals the ballistic movement of electrons in graphene in real-time.
Nanophysics
Dec 15, 2023
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214
Child psychologists have long known that play is essential for children's cognitive development because it boosts their social, physical, and emotional skills. But beginning in the 21st century, specialists repeatedly sounded ...
Social Sciences
Dec 15, 2023
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33
We all know that to have life on a world, you need three critical items: water, warmth, and food. Now add to that a factor called "entropy." It plays a role in determining if a given planet can sustain and grow complex life.
Astrobiology
Dec 14, 2023
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26
The U.S. Fish and Wildlife Service is proposing to enlist shooters to kill more than 500,000 barred owls over the next 30 years in the Pacific Northwest to preserve habitat for northern spotted owls, a protected species.
Plants & Animals
Dec 6, 2023
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15
2023 has shattered climate records, accompanied by extreme weather that has left a trail of devastation and despair, according to the World Meteorological Organization at COP 28. Some of the most significant extreme heat ...
Earth Sciences
Dec 5, 2023
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14
