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#physics

13 posts11 participants5 posts today
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MediaFaro News Digest

LHC breaks the record for heaviest antimatter nucleus ever seen.

Researchers have found evidence of an exotic form of antimatter in the aftermath of colliding extremely fast lead ions.

Benjamin Dönigus at Goethe University Frankfurt and colleagues from the Large Hadron Collider at the Geneva CERN particle physics laboratory have created an unprecedentedly heavy antimatter nucleus: antihyperhelium-4.

mediafaro.org/article/20250422

A particle smasher has created antihyperhelium-4, the heaviest antimatter nucleus ever made in a physics labDuncan Walker/Getty Images
New Scientist · LHC breaks the record for heaviest antimatter nucleus ever seen.By Karmela Padavic-Callaghan
#LargeHadronCollider#LHC#CERN
Public
Nicole Sharp

Bifurcating Waterways

Your typical river has a single water basin and drains along a river or two on its way to the sea. But there are a handful of rivers and lakes that don’t obey our usual expectations. Some rivers flow in two directions. Some lakes have multiple outlets, each to a separate water basin. That means that water from a single lake can wind up in two entirely different bodies of water.

The most famous example of these odd waterways is South America’s Casiquiare River, seen running north to south in the image above. This navigable river connects the Orinoco River (flowing east to west in this image) with the Rio Negro (not pictured). Since the Rio Negro eventually joins the Amazon, the Casiquiare River’s meandering, nearly-flat course connects the continent’s two largest basins: the Orinoco and the Amazon.

For more strange waterways across the Americas, check out this review paper, which describes a total of 9 such hydrological head-scratchers. (Image credit: Coordenação-Geral de Observação da Terra/INPE; research credit: R. Sowby and A. Siegel; via Eos)

Black and white satellite image showing the Casiquiare River (flowing north to south in the center of this image), which connects the Orinoco River (running east to west) with the Rio Negro.
#fluidDynamics#geophysics#physics
Public
A-Dub

How well-intentioned white male physicists maintain ignorance of inequity and justify inaction, by Melissa Dancy and Apriel Hodari:

arxiv.org/abs/2210.03522

arXiv logo
arXiv.orgHow well-intentioned white male physicists maintain ignorance of inequity and justify inactionBackground: We present an analysis of interviews with 27 self-identified progressive white-male physics faculty and graduate students discussing race and gender in physics. White men dominate most STEM fields and are particularly overrepresented in positions of status and influence (i.e. full professors, chairs, deans, etc.), positioning them as a potentially powerful demographic for enacting systemic reform. Despite their proclaimed outrage at and interest in addressing inequity, they frequently engage in patterns of belief, speech and (in)action that ultimately support the status quo of white male privilege in opposition to their intentions. Results: The white male physicists we interviewed used numerous discourses which support racist and sexist norms and position them as powerless to disrupt their own privilege. We present and discuss three overarching themes, seen in our data, demonstrating how highly intelligent, well-intentioned people of privilege maintain their power and privilege despite their own intentions: 1) Denying inequity is physically near them, 2) Locating causes of inequity in large societal systems over which they have little influence and 3) Justifying inaction. Conclusions: Despite being progressively minded, well-meaning, and highly intelligent, these men are frequently complicit in racism and sexism in physics. We end with recommendations for helping these men to engage the power they hold to better work with women and people of color in disrupting inequity in physics.
#Physics#Racism#Sexism
Public
The Times Of Update

Mars’ Volcanic History Revealed: 2025 Study Uncovers Clues to Ancient Climate timesofupdate.com/mars-volcani Mars, the Red Planet, continues to captivate scientists and space enthusiasts alike. A groundbreaking 2025 study published in Nature Geoscience unveils the intricate volcanic history of Mars, shedding light on its ancient climate and potential for past habitability… #Materials #Nanotechnology #PhysicalNews #Physics #science #ScienceNews #TechnologicalNews #technology

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