In 2019, the International System of Units (SI) was redefined in terms of constants that relate to the natural world. This assures the future stability of the SI and opens the opportunity for the use of new technologies, ...
General Physics
Nov 15, 2022
0
2
An improvement to a Nobel Prize-winning technology called a frequency comb enables it to measure light pulse arrival times with greater sensitivity than was previously possible—potentially improving measurements of distance ...
Optics & Photonics
Oct 24, 2022
0
13
Scientists with the U.S. Department of Agriculture's Agricultural Research Service (ARS) and the University of Montana have developed a way to forecast which of the Great Basin's more than 60 million acres have the highest ...
Earth Sciences
Sep 21, 2022
0
5
Images in the wake of violent coastal storms usually focus purely on the extensive damage caused to beaches, dunes, property, and surrounding infrastructure.
Environment
May 12, 2022
2
116
Based on optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS) technology, a research team led by Prof. Zhang Weijun from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) ...
Optics & Photonics
Apr 29, 2022
0
39
In a paper published today in Nature Communications, a team led by scientists from the University of California, Irvine, using climate models and satellite data, reveal for the first time how protecting tropical forests can ...
Environment
Apr 13, 2022
4
198
The National Institute of Standards and Technology (NIST) recently completed major upgrades to two key instruments serving critical national needs: measuring the properties of light as it is reflected from a surface or transmitted ...
Optics & Photonics
Jan 5, 2022
0
24
Just two weeks after launching from Vandenberg Space Force Base in California, NASA's Double Asteroid Redirection Test (DART) spacecraft has opened its "eye" and returned its first images from space—a major operational ...
Astronomy
Dec 29, 2021
0
186
In a recently published article in Physical Review Letters, the ALICE collaboration has used a method called femtoscopy to study the residual interaction between two-quark and three-quark particles. Through this measurement, ...
Quantum Physics
Nov 17, 2021
1
902
The Event Horizon Telescope (EHT) has recently mapped the central compact object of the galaxy M87 with an unprecedented angular resolution. Though the remarkable breakthrough has been interpreted based on theory that M87 ...
Astronomy
Nov 16, 2021
6
56
