General · Language

Universal symmetries – what really is broken?

An article from Quanta Magazine (below) recaps the history of space-time symmetries in physics and how those symmetries have, in a sense, been simplified: Galilean (Newtonian) static, separate space and time. Relativistic “flat” space-time – Minkowski / Poincaré / Einstein. de Sitter spherical space-time: “… in the same way that the finite speed of light… Continue reading Universal symmetries – what really is broken?

General · Language

When conservation of energy goes out the window?

This post was inspired by Don Lincoln’s YouTube video “Subatomic Stories: Is the Planck length really the smallest?” In his Q&A (where he responds to questions from prior videos), he notes a caveat about the law of conservation of energy. Energy may not be conserved … because space-time can change. He offers some links for… Continue reading When conservation of energy goes out the window?

Language · Media

Making matter from light – ultra energies and unification of forces

E = mc² The Holy Grail of modern physics is a so-called theory of everything, a unified field theory, a theory which unifies all known “forces.” That is, unifies all the fundamental interactions of nature. The three “quantum” interactions (electromagnetism, weak, strong) and gravitation. A conventional sequence of theories depicts final unification as occurring at… Continue reading Making matter from light – ultra energies and unification of forces

General · Language · Media · Site

Sightseeing near the speed of light – realistic simulation

Paraphrasing: Just a note before you go,A vision to be learnedTraveling near the speed of lightIt’s easy to get … Imagining how things would look when traveling near the speed of light is an interesting exercise. Using a freeware video game developed by MIT Game Lab (2012), this visualization (below) by The Action Lab is… Continue reading Sightseeing near the speed of light – realistic simulation

General · Language · Media

Quantum mechanics math basics – tasting the notation

[Communicating science series] All hail vector spaces! Imagine walking into an elementary school classroom and finding kids talking about quantum states. Depicting quantum interactions using diagrams and bra-ket manipulatives, for wave functions. Someday, eh. While we may never achieve Ernest Rutherford‘s notion of a quantum theory so simple that we can explain it to an… Continue reading Quantum mechanics math basics – tasting the notation

General · Problem

Life and the physics of having a moon

So, today I’m celebrating the Moon. The ancient mythology and modern physics of its stabilizing influence. Both the Moon’s natural prominence in the earthly sky and its regular cycle of phases as seen from Earth have provided cultural references and influences for human societies and cultures since time immemorial. After enjoying the full moon for… Continue reading Life and the physics of having a moon

General · Language · Media · Site

DUNE – digging for neutrinos, not spice

[Big Science, quantum foundations] While already following this Big Science project [1], with construction underway (for the next 3 years), I felt that a specific post was appropriate. The Deep Underground Neutrino Experiment (DUNE) is a massive worldwide collaboration between countries, organizations, and over a 1000 scientists. All hail neutrinos! [2] I spent some time… Continue reading DUNE – digging for neutrinos, not spice