drchinese

Interview with Science Advisor DrChinese

4 Comments
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We are pleased to share with you an interview with PF Science…
govandteachers
,

Blaming Government for Teacher and Scientist Failures in Integrity

8 Comments
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The article, "Governmental policy is wrecking science," makes…
cubicfunction
,

Solving the Cubic Equation for Dummies

4 Comments
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Everybody learns the "quadratic formula" for solving equations…
digitalcamera3
,

Digital Camera Buyer's Guide: Real Cameras

5 Comments
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I've never owned a camera, but I want to get a 'real' camera…
rollingmotion
,

Explaining Rolling Motion

30 Comments
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Although rolling wheels are everywhere, when most people are…
davidgriffths

Interview with a Physicist: David J. Griffiths

11 Comments
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We are pleased to introduce David J. Griffiths. Professor Griffiths…
quantumparticle
,

Spectral Standard Model and String Compactifications

20 Comments
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  The Connes-Lott-Chamseddine-Barrett model is the…
digitalcamera2
,

Digital Camera Buyer's Guide: Compact Point and Shoot

2 Comments
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  I've never owned a camera (besides what is in my…
cmbprimer4
,

A Poor Man's CMB Primer. Part 4: Cosmic Acoustics

1 Comments
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  Before decoupling, photons and charged particles…
digitalcamera1
,

Digital Camera Buyer's Guide: Introduction

70 Comments
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  First, congratulations! Camera technology has advanced…
spacetimecon
,

Struggles with the Continuum - Conclusion

2 Comments
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  We've been looking at how the continuum nature…
11dgravity
,

11d Gravity From Just the Torsion Constraint

16 Comments
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  It is familiar that Einstein gravity may be formulated …
spacetime7
,

Struggles with the Continuum - Part 7

1 Comments
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  Combining electromagnetism with relativity and…
namethephoto

Name the Science Photo

12 Comments
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Summer is almost over, but the fun doesn't have to stop! Take…
ohmslaw
,

Ohm's Law Mellow

23 Comments
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At first I wanted this title to say “Ohm’s law is not a Law.” …
carcapacity
,

Why Road Capacity Is Almost Independent of the Speed Limit

27 Comments
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Let us start with a familiar situation. Take a familiar part…
quantumhard
,

Why Is Quantum Mechanics So Difficult?

231 Comments
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Strangely enough, QM's formalism isn't any more difficult than…
introphysics
,

So I Am Your Intro Physics Instructor

14 Comments
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I posted this elsewhere (on my personal blog), and someone mentioned…
entropy
,

Grandpa Chet's Entropy Recipe

5 Comments
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How do you determine the change in entropy for a closed system…
Supersymmetry
,

Why Supersymmetry? Because of Deligne's theorem.

39 Comments
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  In 2002, Pierre Deligne proved a remarkable theorem…
Schwarzschild
,

Orbital Precession in the Schwarzschild and Kerr Metrics

6 Comments
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The Schwarzschild Metric A Lagrangian that can be used to describe…
Precessionrelaitivity
,

Precession in Special and General Relativity

3 Comments
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The Absolute Derivative In relativity we typically deal with…
spacetimetetrad
,

Tetrad Fields and Spacetime

1 Comments
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A spacetime is often described in terms of a tetrad field, that…
LHC4
,

LHC Part 4: Searching for New Particles and Decays

4 Comments
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  The LHC experiments are in full swing collecting…
acusticbeats
,

Acoustic 'beats' from Mismatched Musical Frequencies

11 Comments
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In late high school physics courses and first year university…
omissionguage
,

Omissions in Mathematics Education: Gauge Integration

28 Comments
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The current (pure) mathematics curriculum at the university is…
polymer
,

Polymer Physics and Genetic Sequencing

3 Comments
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Introduction My main research focuses on using DNA molecules…
featuredImage-Tutorial-TimeDilation
, ,

Relativity on Rotated Graph Paper

15 Comments
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This Insight is a follow up to my earlier tutorial Insight (Spacetime…
Brachistochrone
,

General Brachistochrone Problem

2 Comments
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Consider a problem about the curve of fastest descent in the…
qualitycontrol
,

Reflections on Product Quality

6 Comments
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On Hardware Quality It is impossible to test quality into…
integralmisconceptions
,

Some Misconceptions on Indefinite Integrals

21 Comments
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Integration is an incredibly useful technique taught in all calculus…
basickinematics
,

Basic Kinematics

7 Comments
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There is an interesting thing in teaching of Classical Mechanics.…
groupsandgeometry
,

Groups and Geometry

7 Comments
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There is a very deep link between group theory and geometry.…