Physics Articles

Here contains the collection of expert physics articles that deal with physics topics. These span all skill ranges and may include astronomy and cosmology topics. Learn something new today by professionals in the fields you are interested in!

spacetime5

Struggles with the Continuum: Quantum Electrodynamics

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    Quantum field theory is the best method…
darkmatter

Knut Lundmark and the Prehistory of Dark Matter

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Look in your standard cosmology textbook (in my case, the closest…
spacetime4

Struggles with the Continuum - Relativity and Quantum

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  In this series we're looking at mathematical problems…
theneedforinfinity

The Need of Infinity in Physics

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It is beyond doubt that the notion of infinity lies somewhere…
complexscience

The Complexity of Modern Science

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Science today is incredibly complex. Anyone who ever did scientific…
rainbows

Exploration into the Physics of Rainbows

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For several years, I have been contemplating this beautiful…
earthgravity

All about Earth's Gravity

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Earth's gravitational field at the surface is approximately 9.8…
speedoflight1

The Speed of Light and Galilean Relativity

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Introduction In this article I will discuss some experiments…
buoyancy

Understanding Buoyancy: The Limits of Archimedes

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It’s a principle as old as science itself, and remarkably,…
studymath

How to Self-Study Basic High School Mathematics

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  How to self-study basic high school mathematics We…
studymath1

A Guide to Self Study Mathematics

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  How to self-study mathematics? People self-study…
seeelectron

See an Electron Lately?

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This is not about seeing an electron, but rather, the notion…
peterblockuniverse

The Block Universe - Refuting a Common Argument

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The "block universe" interpretation of SR has come up repeatedly…
Retrocausality

Understanding Retrocausality

In an Insights series “Blockworld and its Foundational Implications,”…
blockuniverse5

Blockworld and its Foundational Implications: Delayed Choice and No Counterfactual Definiteness

  In parts 1 and 2 of this 5-part Insights series,…
blockuniverse4

Blockworld and its Foundational Implications: General Relativity and Closed Timelike Curves

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  In parts 1 and 2 of this 5-part Insights series,…
blockuniverse3

Blockworld and its Foundational Implications: General Relativity and the Big Bang

  In parts 1 and 2 of this 5-part Insights series,…
blockuniverse2

Blockworld and Its Foundational Implications: The Relativity of Simultaneity and Blockworld

  In part 1 of this 5-part Insights series, I introduced…
blockuniverse1

Blockworld and Its Foundational Implications: Time Dilation and Length Contraction

  This is the first in a 5-part series of Insights…
prequantum4

Examples of Prequantum Field Theories IV: Wess-Zumino-Witten-type Theories

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    At the end of this page, we will have…
prequantum3

Examples of Prequantum Field Theories III: Chern-Simons-type Theories

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    After having constructed gauge fields…
guagetheory

Examples of Prequantum Field Theories II: Higher Gauge Fields

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      After having recalled ordinary…
prequantumft

Examples of Prequantum Field Theories I: Gauge Fields

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    After having motivated the need for prequantum…
animationwalk

Fun with Self-Avoiding Walks

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This post is about some simulations I did of self-avoiding…
prequantumgeometry5

Higher Prequantum Geometry V: The Local Observables - Lie Theoretically

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  This article discusses how from the previous considerations…
prequantumgeometry4

Higher Prequantum Geometry IV: The Covariant Phase Space - Transgressively

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    The Euler-Lagrange ##p##-gerbes discussed…
prequantumgeometry3

Higher Prequantum Geometry III: The Global Action Functional - Cohomologically

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    The previous article ended with the…
blackbody

A Poor Man's CMB Primer: Bumps on a Blackbody

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  Astronomers Arno Penzias and Robert Wilson discovered…
prequantumgeometry2

Higher Prequantum Geometry II: The Principle of Extremal Action - Comonadically

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    The previous article motivated the importance…
redshiftblackholes

Time Dilation and Redshift for a Static Black Hole

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The following is an overview of the time dilation and gravitational…
prequantumgeometry

Higher Prequantum Geometry I: The Need for Prequantum Geometry

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  Before proceeding with discussion of the super…
atoms

Can We See an Atom?

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If you look on the internet for pictures of atoms, you will…
gravity3

Does Gravity Gravitate: The Wave

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  In the first two posts in this series, we looked…
gravitate2

Does Gravity Gravitate? Part 2

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  In the first post of this series, I talked about…
birthcmb

A Poor Man's CMB Primer: The Birth of a Cosmic Background Radiation

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  The early universe was hot. So hot, in fact, that…
modulation

Modulation vs. Beating Confusion

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A long time ago I read a paper in the IEEEProceedings recounting…
balloonanalogy

Inflation Balloon Analogy Misconceptions

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This article was written with considerable input from several…
spacetime4

Struggles With the Continuum: Point Particles and the Electromagnetic Field

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  In these posts, we're seeing how our favorite theories…
bubbles

Explosion-Generated Collapsing Vacuum Bubbles Reach 20,000 Kelvin

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In a recent paper published in Physical Review Letters (PRL),…
cmb

A Poor Man's CMB Primer: Orientation of the Universe

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  This is a picture of the cosmic microwave background: Fig…
planck

A Hand-Wavy Discussion of the Planck Length

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The Planck length is an extremely small distance constructed…
spacetime2

Struggles With The Continuum: Quantum Mechanics of Charged Particles

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  Last time we saw that that nobody yet knows if…
animalspeeds

Scaling Laws and the Speed of Animals

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In a recent issue of the American Journal of Physics, I read…
infinity_faq

Misconceptions About Infinity

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Understanding the behaviour of infinity is one of the major accomplishments…
man_on_moon

The Last Man On The Moon | A Look Back at Previous Missions

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On 11th December 1972, just over 45 years ago, man set foot on…
spacetime

Struggles With the Continuum: Is Spacetime Really a Continuum?

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  Is spacetime really a continuum?  That is, can…
photoelectric

"Violating" Einstein's Photoelectric Effect Model

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One of the most spectacular theoretical descriptions that Einstein…
CosmologicalHorizons

Inflationary Misconceptions and the Basics of Cosmological Horizons

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It is a common saying that during inflation "space expanded faster…
lightswitch

What Happens When You Flip the Light Switch?

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Few people know what happens when a customer does something like…
relativitytherorm

Relativistic Work-Kinetic Energy Theorem

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I was bothered for a long time by the reasons for the relativistic…
supergravity

Emergence From the Superpoint

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  In the previous article we saw that the generalization…