Book · General · Language

Helgoland? – escape from quantum island

[“Quantum foundations” series] Carlo Rovelli’s new book Helgoland – Making Sense of the Quantum Revolution is in the news cycle this week, with promo’s and reviews. (Probably more comments later.) (quote) Helgoland is a book by Italian physicist Carlo Rovelli. It is about quantum mechanics and its relational interpretation. The title refers to Werner Heisenberg’s… Continue reading Helgoland? – escape from quantum island

General · Language · Problem

FRBs – whence galactic epic flashes of energy?

Epic events catch our attention. Spectacular stellar events have attracted attention since ancient times. Some events, however, cannot be observed with our eyes (visible light). Radio sources. And massive spikes in radio energy are telling astronomers something interesting. • NASA > “Hubble Tracks Down Fast Radio Bursts to Galaxies’ Spiral Arms” (May 20,2021) [Includes YouTube… Continue reading FRBs – whence galactic epic flashes of energy?

General · Language · Photo

Imaging atoms – seeing the impossibly small

When not merely obscured in our field of view, things which we cannot see – that are essentially invisible – often may be either impossibly distant or impossibly small (among other factors). That’s why we have telescopes and microscopes. At cosmic scales, imaging a black hole was like seeing something spanning “the size of a period… Continue reading Imaging atoms – seeing the impossibly small

General · Language · Media · Site · Story

Evidence for new physics? > Fermilab’s Muon g-2 results announced

As noted in comments for my “The future of (particle) physics?” post, the first results from Fermilab’s Muon g-2 experiment are a big deal for physics. Waiting for years. Highly anticipated. As expected, today these results were officially released. Fermilab itself released an excellent YouTube video visualization which includes background on the project and experiment… Continue reading Evidence for new physics? > Fermilab’s Muon g-2 results announced

General · Language · Media

Particle zoo to Standard Model and beyond

[“What’s changed in the last 50 years” series] Another interesting Symmetry Magazine article – a historical recap of the Standard Model and some highlights. • Symmetry Magazine > “Six fabulous facts about the Standard Model” by Sarah Charley ( March 16, 2021) – Learn about the Standard Model of particle physics and how physicists use… Continue reading Particle zoo to Standard Model and beyond

General · Language · Media

Time crystals? – crystal patterns in space and time

Frank Wilczek referenced this topic – time crystals – in his latest book (Fundamentals: Ten Keys to Reality). Time crystals are physical systems that spontaneously settle into stable loops of behavior. I proposed this concept in 2012, and many interesting examples have been discovered since then, both theoretically and experimentally. A recent example is close to… Continue reading Time crystals? – crystal patterns in space and time

General · Language · Problem

The cosmos is like a fluid?

So, the short answer is yes. A useful model, at a certain scale. How can that be? The cosmos is full of stuff. Vast collections of stars, planets, rocks, dust, gas. Chunked over vast distances. Not what our everyday experience considers fluid stuff. Well, in physics and engineering, fluid dynamics embraces what typically are referred… Continue reading The cosmos is like a fluid?

General · Language · Problem

What are axions – real or not?

So, what are axions? I’ve noticed more articles lately about axions. Why all the fuss, eh? • Wiki The axion is a hypothetical elementary particle postulated by the Peccei–Quinn theory in 1977 to resolve the strong CP problem [violation of the combined symmetries of charge conjugation and parity] in quantum chromodynamics (QCD). If axions exist… Continue reading What are axions – real or not?