One might think that the optical tweezer – a focused laser beam that can trap small particles – is old hat by now. After all, the tweezer was invented by Arthur Ashkin in 1970. And he received the Nobel Prize for it this ...
Quantum Physics
Nov 7, 2018
0
62
Tetraphenylammonium, with all four hydrogens of ammonium (NH4+) replaced with benzene rings, has neither been discovered in nature nor chemically synthesized, calling into question whether it could exist. Here, we succeeded ...
Analytical Chemistry
Jun 3, 2022
0
122
A team including physicists from the University of Basel has succeeded in using atomic force microscopy to obtain clear images of individual impurity atoms in graphene ribbons. Thanks to the forces measured in the graphene's ...
Nanomaterials
Apr 13, 2018
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284
A fuller picture is emerging of the environmental footprint of beef in the United States.
Environment
Mar 12, 2019
2
44
While domestication of plants has yielded bigger crops, the process has often had a negative effect on plant microbiomes, making domesticated plants more dependent on fertilizer and other soil amendments than their wild relatives.
Ecology
Mar 10, 2020
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668
In 2019, NASA's OSIRIS-REx spacecraft sent back images of a geological phenomenon no one had ever seen before: pebbles were flying off the surface of the asteroid Bennu. The asteroid appeared to be shooting off swarms of ...
Astronomy
Aug 11, 2022
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179
It's a simple question that sounds a little like a modest proposal: "Should we cut down all the oak trees?" asks Tom Sharkey, a University Distinguished Professor in the Plant Resilience Institute at Michigan State University.
Environment
Oct 5, 2023
10
157
Synthetic nitrogen fertilizers account for 2.1% of global greenhouse gas emissions, new research shows.
Environment
Sep 21, 2022
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87
Reducing greenhouse gas emissions (GHGs) and nitrogen water pollution from agriculture are top environmental priorities in the United States. Key to achieving climate goals is helping producers navigate carbon markets, while ...
Environment
Jul 15, 2021
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38
The Earth's core is an exceptionally difficult place to study. Its depths descend a staggering 2,900 kilometers—about the distance from New York City to Denver—and its extreme, otherworldly conditions are extraordinarily ...
Earth Sciences
Dec 20, 2018
0
157
