mass
-
Chemistry
AI analysis shows chemical research often contains inaccurate mass measurement data
Examples of accurate mass calculations and miscalculations using ChemDraw. Credit: Organic Letters (2024). DOI: 10.1021/acs.orglett.4c03458 AI-powered data analysis tools have the potential to significantly improve the quality of scientific publications. A new study by Professor Matthias Christmann, professor of chemistry at the Free University of Berlin, reveals shortcomings in chemical publications. Christmann analyzed more than 3,000 scientific papers published in…
Read More » -
Biology
Survey reveals that mass die-off of seabirds due to Pacific heat wave is in full swing
A group of murres at a breeding colony in Alaska. These seabirds dive and swim underwater to prey on small fish, then fly to islands and coastal cliffs to form large colonies. Credit: Sarah Schoen/U.S. Geological Survey A common seabird, the murre looks a little like a flying penguin. These rugged, tuxedo-style birds dive or swim in the ocean to…
Read More » -
Physics
Proton halo structure revealed by accurate mass measurement of atomic nucleus
Schematic diagram of the proton and neutron distribution of mirror nuclei argon-31 and aluminum-31. On the left is the weakly bound proton-rich nuclear argon 31, which is predicted to exhibit a significant halo structure in this study. On the right is the deeply bound neutron-rich nucleus aluminum 31. Credit: IMP Researchers at the Institute of Modern Physics (IMP) of the…
Read More » -
Other Sciences
Q&A: Researchers claim mass education is designed to counteract critical thinking
Credit: Pixabay/CC0 Public Domain Education should encourage deep inquiry and personal autonomy, but too often it has been used as a means of indoctrination. That’s what Agustina S. Pagulayan, assistant professor of political science in the School of Social Sciences and Global Policy and Strategy at the University of California, San Diego, argues in her new book, Raised to Obey:…
Read More » -
Physics
Scientists gain new insight into how mass is distributed within hadrons
Two-dimensional spatial distribution of mass due to gluons of nucleons (left) and pions (right). It is simulated with a seven-valent pion mass using lattice quantum chromodynamics. Credit: Bigen One Scientists can determine the mass of elementary particles made of quarks by examining the particle’s energy and momentum in four-dimensional spacetime. One of the quantities that encode this information is called…
Read More » -
Physics
New CMS results solve mystery of W boson mass
The Compact Muon Solenoid Detector is located 100 metres underground at CERN on the French-Swiss border and collects data from the Large Hadron Collider. The detector has been operational since 2010 and is part of one of the largest international scientific collaborations in history, studying the fundamental laws of nature. Credit: Brice, Maximilien: CERN Following an unexpected measurement at Fermi…
Read More » -
Earth
Earth’s biggest mass extinction event 250 million years ago shows what can happen when El Niño gets out of control
Credit: Pixabay/CC0 Public Domain About 252 million years ago, the Earth suddenly warmed. Over a geologically short period of a few tens of thousands of years, 90% of species became extinct. Even insects, which are rarely affected by such events, suffered devastating losses. The Permian-Triassic mass extinction was the largest of the “Big Five” mass extinctions in Earth’s history. Scientists…
Read More »