Quiz of the week: how many galaxies and quasars are in the biggest high-res 3D map of our universe? – Physics World Skip to main content Discover more from Physics World Copyright © 2026 by IOP Publishing Ltd and individual …
Photographer Chris Perani is fascinated by the microstructures of insect wings, which he captures in “extreme macro” through focus stacking–letting us see wings in glorious micron-scale detail. In addition to giving insects their brilliant colors and irridescence, these structures serve …
In this post I’ll discuss Weyl spinor fields and explain why Wick-rotating a single Weyl spinor field appears to be impossible. This motivates a proposal for a different way of thinking about the relation between spinors and vectors, described by …
Book cover for Archives of Science In the new open-access volume Archives of Science: Challenges and Opportunities in the 21st Century, editors Polina Ilieva and Venkat Srinivasan bring together archivists and scholars from around the world to confront a central …
The team’s ultra-precise measurement confirms the Standard Model’s predictions. When fundamental particles are heavier or lighter than expected, physicists’ understanding of the universe can tip into the unknown. A particle that is just beyond its predicted mass can unravel scientists’ …
📖Read Time: 5 minutes 📊Readability: Moderate (Standard complexity) 🔖Core Topics: om, mn, os, op, velocity The “Addition of Velocities” formula (more correctly, the “Composition of Velocities” formula) in Special Relativity [tex]\frac{v_{AC}}{c}=\frac{ \frac{v_{AB}}{c}+\frac{v_{BC}}{c} }{1 + \frac{v_{AB}}{c} \frac{v_{BC}}{c}}[/tex] is a non-intuitive result …
When I was pursuing a PhD at Caltech, so was my friend Jeremy. He used to throw a dinner party every few months. The email invitations welcomed friends to partake of his cooking and, if we wished, to help him …
Progress in quantum computing as an industry has been relatively stagnant for a while now. But over the past few weeks, that’s changed. Multiple groups focused on quantum cryptography (using quantum computers to break previously-unbreakable encryption protocols) published breakthrough papers …
Laser-driven free electron laser runs for more than eight hours – Physics World Skip to main content Discover more from Physics World Copyright © 2026 by IOP Publishing Ltd and individual contributors Source link
A toad swims across a pond in this award-winning image from photographer Paul Hobson. The shot was actually captured from below the water, with the camera kept dry in a glass housing. Although the frog appears to be mid-leap, the …