Scientists have found that a physical property called 'quantum negativity' can be used to take more precise measurements of everything from molecular distances to gravitational waves.
Quantum Physics
Jul 29, 2020
16
6073
The world's most commonly used system of measurement, the International System of Units (SI), was redefined in 2019. Since then, units have needed to be defined in terms of the constants of nature—that is, nature's rules ...
Nanophysics
Jan 20, 2022
1
1083
A new laser speckle angular measurement (SAM) technique detailed in a paper in Light: Science and Applications demonstrates how slope error measurements can be reduced dramatically. This is important because X-ray mirrors ...
Optics & Photonics
Sep 23, 2021
0
61
Researchers have developed a lightweight optical system for 3D inspection of surfaces with micron-scale precision. The new measurement tool could greatly enhance quality control inspection for high-tech products including ...
Optics & Photonics
Aug 23, 2021
0
438
Scientists from the Physikalisch-Technische Bundesanstalt (PTB) have implemented a novel pressure measurement method, partly as a byproduct of the work on the "new" kelvin. In addition to being new, this procedure is a primary ...
General Physics
Dec 2, 2019
0
55
(Phys.org)—A team of researchers from the NIST Center for Nanoscale Science and Technology, the Royal Institute of Technology, Stockholm, and the University of Maryland have demonstrated a microscopy method to identify ...
General Physics
Sep 13, 2012
0
0
(PhysOrg.com) -- Metrology is poised to undergo a profound change that will benefit scientists, engineers, industry and commerce – but which almost no one will notice in daily life.
General Physics
Nov 3, 2011
3
0
A team of environmental scientists from Harvard and Tsinghua University demonstrated the enormous potential for wind-generated electricity in China. Using extensive metrological data and incorporating the Chinese government's ...
Energy & Green Tech
Sep 10, 2009
0
0
(PhysOrg.com) -- UC San Diego scientists are using laser plasma-produced light sources to explore performance improvements of critical inspection tools for the semiconductor industry, which ultimately will enable industry ...
Electronics & Semiconductors
Jul 14, 2009
2
0
Researchers in Japan have turned to mathematics to build a computerized 3D model of the female trunk that could help lingerie and other clothes designers make more sensuous, comfortable, and better fitting product ranges.
Computer Sciences
Mar 12, 2009
1
0
Metrology is the science of measurement. Metrology includes all theoretical and practical aspects of measurement. The word comes from Greek μέτρον (metron), "measure" + "λόγος" (logos), amongst others meaning "speech, oration, discourse, quote, study, calculation, reason". In Ancient Greek the term μετρολογία (metrologia) meant "theory of ratios".
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