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no tidal bulge

Beyond the Tidal Bulge

Overview That there is no tidal bulge is the key premise of this article. Upper-level oceanography undergraduates and above know this. Yet the tidal bulge is still used to portray why the Moon is receding the Earth. If there is no tidal bulge, some other explanation is in order. That other explanation uses gravitation as…

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9 Reasons Quantum Mechanics is Incomplete

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I argue that all interpretations of quantum mechanics (QM) are incomplete, each for its own reason. I also point out that for some interpretations (those…
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AVX-512 Assembly Programming: Opmask Registers for Conditional Arithmetic Conclusion

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In the first part of this article (AVX-512 Assembly Programing - Opmask Registers for Conditional Arithmetic), we looked at how opmask registers can be…
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AVX-512 Assembly Programming: Opmask Registers for Conditional Arithmetic

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This is the second installment in a continuing series of articles on Intel AVX-512 assembly programming. The first installment is An Intro to AVX-512 Assembly…
Simple Harmonic Oscillator Laboratory

An Accurate Simple Harmonic Oscillator Laboratory

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Learning Objectives * Execute a specific experimental procedure to test a specific hypothesis. * Use the Tracker video analysis software for a simple…
AVX-512 Assembly Programming

An Intro to AVX-512 Assembly Programming

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History In 1998, the Intel Corporation released processors that supported SIMD (single instruction, multiple data) instructions, enabling processors to…
against quantum interpretations

Against “interpretation”

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I am against "interpretations" of Quantum Mechanics (QM) in a sense in which John Bell [1] was against measurement in QM and Travis Norsen [2] is against…
lie algebra representations

Lie Algebras: A Walkthrough The Representations

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  Part III: Representations  10. Sums and Products. Frobenius began in ##1896## to generalize Weber's group characters and soon investigated…
abacus introduction

An Introduction to the Traditional Abacus of China and Japan

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Introduction Abacuses are commonly seen in ancient civilizations around the world as a convenient tool to do simple calculations. In this article, we…
Hooke's Law Experiement

An Example of An Accurate Hooke’s Law Laboratory

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Lie Algebra Structure

Learn Lie Algebras: A Walkthrough The Structures

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  Part II: Structures5. Decompositions.Lie algebra theory is to a large extend the classification of the semisimple Lie algebras…
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Learn Lie Algebras: A Walkthrough The Basics

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  Part I: Basics 1. Introduction. This article is meant to provide a quick reference guide to Lie algebras: the terminology, important theorems,…
Interview with Michio Kaku

Q&A Interview with Physicist Michio Kaku

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Don't forget to read Part 1 of this interview.Professor Kaku, what do you think of "peak oil," how serious is it? and what alternative sources of energy…
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Interview with Theoretical Physicist Michio Kaku

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We are happy to have Michio Kaku answer some questions from the community. This interview was originally held in 2004. Michio Kaku is an American theoretical…
Data Structures Programming

Intro to Data Structures for Programming

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Bernoulli's equation

Demystifying the Often Misunderstood Bernoulli’s Equation

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Are Magnetic Field Lines Real?

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When Vehicle Power Dictates Acceleration

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The Quantum Mystery of Wigner’s Friend

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The purpose of this article is not to provide some rigorous statement, neither a rigorous clever proof of the fundamental theorem of calculus. It is rather…
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Inventions and Inventors Quiz and Trivia

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The Unreasonable Effectiveness of the Popescu-Rohrlich Correlations

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In this Insight, I will show how the Popescu-Rohrlich (superquantum) correlations provide an unreasonable advantage in a particular "quantum guessing game''…
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Interview with Engineer Mentor anorlunda

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Tell us about your school years? Part of my story is sad but common. I was a poor student. I didn’t pay attention, and I never did homework even once;…
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An Example of Servo-Constraints in Mechanics

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Servo-constraint was invented by Henri Beghin in his Ph.D. thesis in 1922. For details see the celebrated monograph in rational mechanics by Paul Appell.To…
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Guide to Buying Your First Telescope

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We often have questions about what telescope an aspiring amateur astronomer should buy. The "correct" answer can be elusive and is highly dependent on…
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Exploring the Math in Killing Fields and Black Holes

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Killing Vector Field The Killing vector field is a vector field on a differentiable manifold that preserves the metric over spacetime (from this I assume,…
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Exploring the Energies in the Large Hadron Collider (LHC)

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The Large Hadron Collider has produced collisions at 7 TeV. For collisions at 7 TeV, protons need to be ‘ramped’ to 3.5 TeV, the proton has a mass…
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Black Holes and the Properties of In-Falling Radial Plungers

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From 'Exploring Black Holes' by John Wheeler and Edwin Taylor; can apply to any object falling radially towards a static spherical mass (where the mass…
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Learn a Simplified Synthesis of Financial Options Pricing

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Orbital Mechanics in Unity Game Engine for Augmented Reality

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Match the Scientist with the Story Quiz

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tensor calculus

The 10 Commandments of Index Expressions and Tensor Calculus

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Having more than 10 years of experience in teaching vector and tensor calculus and special and general relativity, I have noted that many people have the…
speed of sound

Direct Echo-Based Measurement of the Speed of Sound

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A New Interpretation of Dr. Walter Lewin’s Paradox

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How to Better Define Information in Physics

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Either the Sun Is Getting Smaller or Gravity Is Getting Weaker

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Rindler Motion in Special Relativity: Hyperbolic Trajectories

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Interview with Astrophysicist Adam Becker

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Learn Statistical Mechanics: The Ideal Gas

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Learn the Basics of Hilbert Spaces and Their Relatives: Operators

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Learn the Basics of Hilbert Spaces and Their Relatives

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  Basics Language first: There is no such thing as the Hilbert space.Hilbert spaces can look rather different, and which one is used in…
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Learn Renormalization in Mathematical Quantum Field Theory

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This is one chapter in a series on Mathematical Quantum Field TheoryThe previous chapter is: 15. Interacting quantum fields. 16. Renormalization In…

Name the Science Book Author Quiz

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Learn Interacting Quantum Fields in Mathematical Quantum Field Theory

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This is one chapter in a series on Mathematical Quantum Field Theory.The previous chapter is 14. Free quantum fields.The next chapter is 16. Renormalization. 15.…
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Learn Free Quantum Fields in Mathematical Quantum Field Theory

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This is one chapter in a series on Mathematical Quantum Field TheoryThe previous chapter is 13. Quantization.The next chapter is 15. Interacting…
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Intro to the Big Bang and Infinity Concepts

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In the cosmology section of the Physics Forums, I encountered many Big Bang and related infinity problems. Hence, in this article, I want to explain the…
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Learn About the FLRW Metric and The Friedmann Equation

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A topic that continually comes up in discussions of quantum mechanics is the existence of many different interpretations. Not only are there different…
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Learn Quantization in Mathematical Quantum Field Theory

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The following is one chapter in a series on Mathematical Quantum Field Theory.The previous chapter is 12. Gauge fixing.The next chapter is 14.…
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Learn Statistical Mechanics: Equilibrium Systems

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This is the first of a multi-part series of articles intended to give a concise overview of statistical mechanics and some of its applications. These articles…
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Explore Coordinate Dependent Statements in an Expanding Universe

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Demystifying the Chain Rule in Calculus

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Introduction There are a  number of posts on PF involving a general confusion over the multi-variable chain rule.  The problem is often caused by…
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The Schwarzschild Metric: A Newtonian Comparison

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Learn 3 Tips For Cooling Off Hot Debates and Win The Argument

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The Schwarzschild Metric: The Photon Sphere

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Learn Gauge Fixing in Mathematical Quantum Field Theory

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Learn Reduced Phase Space in Mathematical Quantum Field Theory

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Interview with Mathematician and Physicist Arnold Neumaier

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Learn About Intransitive Dice with a Twist

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qtf_guagesym

Learn Gauge Symmetries in Mathematical Quantum Field Theory

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Learn Propagators in Mathematical Quantum Field Theory

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Learn Phase Space in Mathematical Quantum Field Theory

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Learn Observables in Mathematical Quantum Field Theory

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Learn the Amazing New Research on Untying Knots in Polymers

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Learn Symmetries in Mathematical Quantum Field Theory

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Learn Lagrangians in Mathematical Quantum Field Theory

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Learn Field Variations in Mathematical Quantum Field Theory

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How to Use the Spaghetti-Twist Method to Align DNA

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Learn the Fields of Mathematical Quantum Field Theory

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Learn Spacetime in Mathematical Quantum Field Theory

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Learn the Geometry of Mathematical Quantum Field Theory

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A Journey to The Manifold SU(2): Representations

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A Journey to The Manifold SU(2): Differentiation, Spheres, and Fiber Bundles

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Getting Started with Solar System Imaging

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Learn Further Sums Found Through Fourier Series

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