In 1911, Heike Kamerlingh Onnes discovered the first superconductor, metallic mercury when cooled to a critical temperature of 4.2 Kelvin, where it conducts electricity without resistance. Ever since materials scientists ...
Charge density waves are quantum phenomena occurring in some materials, which involve a static modulation of conduction electrons and the periodic distortion of the lattice. These waves have been observed in numerous condensed ...
As climate change warms Philadelphia, the plants that can be grown in the city will change, too.
Agriculture
May 14, 2024
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9
High-tunnel growing systems, sometimes called hoop houses, have gained popularity for their ability to enhance growth conditions and extend the growing season of horticultural crops. Now, a team led by Penn State researchers ...
Agriculture
Apr 17, 2024
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7
Coast redwoods—enormous, spectacular trees, some reaching nearly 400 feet, the tallest plants on the planet—thrive mostly in a narrow strip of land in the Pacific Northwest of the United States. Most of them grow from ...
Evolution
Jan 2, 2024
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4
In a new study published in the journal Proceedings of the Royal Society B, researchers have studied the efficiency of migratory bats—a species that weighs about eight grams and is found in almost all of Europe. Efficiency, ...
Plants & Animals
May 9, 2023
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188
Trapped electrons traveling in circular loops at extreme speeds inside graphene quantum dots are highly sensitive to external magnetic fields and could be used as novel magnetic field sensors with unique capabilities, according ...
Nanophysics
Mar 6, 2023
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70
Princeton scientists are using innovative techniques to visualize electrons in graphene, a single atomic layer of carbon atoms. They are finding that strong interactions between electrons in high magnetic fields drive them ...
Quantum Physics
Feb 23, 2022
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531
The discovery in 2018 of superconductivity in two single-atom-thick layers of graphene stacked at a precise angle of 1.1 degrees (called 'magic'-angle twisted bilayer graphene) came as a big surprise to the scientific community. ...
Nanophysics
Oct 20, 2021
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1540
The presence of high salt and nitrogen concentrations in high-tunnel soils may make it more challenging to rebuild a healthy soil microbiome following a soil-clearing event, according to microbial ecologists in Penn State's ...
Environment
Feb 11, 2021
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