The company Casimir Inc promises "unlimited power" from the vacuum by using the Casimir effect. Here is why you shouldn’t believe what they say. Source link
Quiz of the week: what technique may be able to create super-high laser intensities? – Physics World Skip to main content Discover more from Physics World Copyright © 2026 by IOP Publishing Ltd and individual contributors Source link
Looking down on a Icelandic geothermal pool gives a view into a dragon’s eye in this drone image by photographer Miki Spitzer. It won the Gold distinction in the World Nature Photography Awards’ “Planet Earth’s landscapes and environments” category. I …
I’m delighted to speak with Shohini Ghose about her excellent 2023 book, Her Space, Her Time: How Trailblazing Women Scientists Decoded the Hidden Universe . Ghose is a Professor of Physics and Computer Science at Wilfrid Laurier University in Canada, …
Gravitational waves emitted by colliding black holes may bear imprints of dark matter, which physicists could detect with a new model. Dark matter is thought to make up most of the matter in the universe, but the only way it …
📖Read Time: 4 minutes 📊Readability: Difficult (Expert level) 🔖Core Topics: itex, efe, tensor, equations, einstein Definition/Summary The Einstein Field Equations (EFE) are a set of ten interrelated differential equations that form the core of Einstein’s general theory of relativity. These …
Current AI technology seems to be making decent progress despite concerns about it slowing over time. But while AI is slowly becoming more “intelligent”, the industry is running into another problem: energy supply. Let’s take a look at why energy …
Building up the quantum workforce: an undergraduate route into industry – Physics World Skip to main content Discover more from Physics World Copyright © 2026 by IOP Publishing Ltd and individual contributors Source link
Wet fur forms a spiral of spiky hairs in this image by photographer Ben Dalgleish. For thin and flexible fibers like hair, a little moisture lets them clump together, forming stiffer (but still flexible) shapes. The technical term for this …
Wick rotation changes the spacetime symmetries of a quantum field theory, changing between The Lorentz group, by which I’ll mean either $SO(3,1)$ or $SL(2,\mathbf C)$, the double cover of the time orientation-preserving subgroup of $SO(3,1)$. The four-dimensional Euclidean signature rotation …