Diagram · General · Language · Problem

How early did disk galaxies emerge?

The universe’s expansion history is one thing; but then there’s its structural evolution. In particular, how early did well-formed galaxies emerge? • Space.com > “Galaxies in early universe were surprisingly diverse, James Webb Space Telescope finds” by Andrew Jones (Jan 16, 2023) – high-redshift galaxies (galaxies as they were around 11 to 13 billion years… Continue reading How early did disk galaxies emerge?

Book · Language · Problem

Unitarity forever? – in an expanding universe

[“Quantum foundations” series] I encountered a Wired reprint of a Quanta Magazine article which I’d flagged awhile ago; so, it’s time to write a new post. While reconciling Quantum Theory and General Relativity is an ongoing topic, I found this Quanta Magazine article interesting for its discussion of unitarity and Hilbert space. Although based on… Continue reading Unitarity forever? – in an expanding universe

General · Language · Media

Quarks – extremely inseparable

[“Quantum foundations” series] As noted in my post “Proton Soup,” a quark – another so-called elementary point particle – is typically discussed in the context of an atomic composite particle’s roiling quark-gluon dynamic [1] – rather than in a solitary state. Stable matter depends on stable protons, a quantum “soup” held together by quantum chromodynamics… Continue reading Quarks – extremely inseparable

General · Media · Photo

JWST’s Pillars of Creation – a star hatchery

A portrait of creative chaos, yet so zen – at least from 6,500 light-years away 😉 • NASA > APOD > Pillars of Creation (2022 October 20) Explanation: A now famous picture from the Hubble Space Telescope featured these star forming columns of cold gas and dust light-years long inside M16, the Eagle Nebula, dubbed… Continue reading JWST’s Pillars of Creation – a star hatchery

Diagram · General · Language · Media · Problem

2022 Nobel Prize – ‘spooky action’ pioneers

[Draft] [“Quantum foundations” series] [“What’s changed in the last ~50 years” series] TABLE OF CONTENTS The buzz Proving that quantum entanglement is real Media articles Takeaways Notes Related posts THE BUZZ Much buzz on Tuesday October 4, 2022, as media marked the 2022 Nobel Prize in physics. So many articles – a hopeful indication regarding… Continue reading 2022 Nobel Prize – ‘spooky action’ pioneers

General · Language · Media · Problem

RIP ‘Big Bang’ singularity?

[“What’s changed in the last 50 years” series] As noted in my January 17, 2019, post “Cosmological fact and fiction,” the Big Bang theory poses questions on “whether terms like ‘origin’ or ‘creation’ even apply; and the limits of language to even discuss the topic.” [1] So, perhaps a rethink was overdue on the topic,… Continue reading RIP ‘Big Bang’ singularity?

Diagram · General · Language · Media

QFT – fields and wave packets

[“Quantum foundations” series] TABLE OF CONTENTS Quantum field theory (QFT) landscape Is QFT incomplete? Light speed sans mass The math of fields Excitations in cosmic microwave background Questions Visualizing wave packets QUANTUM FIELD THEORY (QFT) LANDSCAPE Some recent articles prompted me to further explore (revisit once again, eh) some key features of quantum field theory… Continue reading QFT – fields and wave packets

General · Language · Media · Problem

In two places at once – popsci call-outs

[Communicating science series][Gobbledygook ahoy, PopSci call-outs, …] “Can particles really be in two places at once?“ So remote from everyday experience: How to describe physical behavior that human communication never evolved to describe? To describe something that the mere act of observation extinguishes? Use an abstract symbolic framework like mathematics? And then “convert” mathematical expressions… Continue reading In two places at once – popsci call-outs

General · Language · Media · Problem

Higgs 10 years on – expectations for a path beyond

[Draft – more citations to come] Lately I’ve encountered many articles about research on the Higgs boson. Retrospectives, ongoing discoveries, and expectations for the upgraded LHC and its third run. The stuff of careers for 1000’s of scientists. This research is a fascinating effort akin to “particle archeology.” Inferring – detecting evidence for – the… Continue reading Higgs 10 years on – expectations for a path beyond

General · Language · Media

Living with stellar storms – the moods of our Sun

[“Living with a star” series] [This post was inspired by a Wired article (noted below).] Much has been written about our good fortune to live on a water world (with a stabilizing moon) in a goldilocks zone of a solar system with a star in a stable stage [1]. But stellar and planetary conditions are… Continue reading Living with stellar storms – the moods of our Sun