Jun 14, 2009
Einstein-Rosen Bridge: Wormholes, Time Travel, and Black Holes
By: Jeffrey Donaldson
Jun 10, 2009
Converting Pounds, Kilograms, Newtons, & Slugs: Physics Units for Mass, Weight, & Force Often Converted Incorrectly
By: Paul A. Heckert
May 31, 2009
Obama's Energy Secretary Suggests White Roofs: Physics of Chu's Claim Reflective Surfaces Will Slow Global Warming
By: Paul A. Heckert
May 27, 2009
What are Electron Volts: eVs & MeVs Are Units of Energy for Fundamental Elementary Particles
By: Paul A. Heckert
May 26, 2009
What are Calories, Joules, BTUs, and Ergs: Units To Measure Energy and Work in Physics and Other Sciences
By: Paul A. Heckert
Mar 15, 2009
Why There Is no Atmosphere on the Moon: Weak Gravity Allows Gas Atoms to Escape so no Air on Small Planets
By: Paul A. Heckert
Feb 16, 2009
Spring Tonic for Lakes and Ponds: Melting Ice Rejuvenates Large Bodies of Water in Spring
By: Albert Burchsted
Jan 18, 2009
Understanding Density and Specific Gravity: Mass Divided by Volume is a Property of the Type of Material
By: Paul A. Heckert
Dec 24, 2008
Discoveries in Physics 2008: Ten of the Most Exciting Breakthroughs During the Year
By: Martha R. Gore
Dec 24, 2008
Relatively Speaking: Dimensions and Relativity
By: Scott Hermanson
Dec 21, 2008
Hadron Composite Particles: Baryons and Mesons
By: Scott Hermanson
Nov 23, 2008
Simplified Nuclear Fission and Fusion for Kids: Two Types of Reactions Fuse Light Atoms or Split Heavy Elements
By: Paul A. Heckert
Nov 10, 2008
Why do Hot Air Balloons Fly: How the Ideal Gas Law and Archimedes's Principle Apply to Ballooning
By: Paul A. Heckert
Oct 26, 2008
Understanding the Ideal Gas Law: Boyle's & Charles' Laws and Pressure, Volume & Temperature of Gasses
By: Paul A. Heckert
Oct 9, 2008
Nanotechnology Mimics Nature's Adhesive: A Glue Which Uses the Gecko's Remarkable Feet as its Inspiration
By: Isaac M. McPhee
Sep 9, 2008
Fermi Problems Physics Estimation: Physicists Often Use Order of Magnitude or Power of Ten Estimates
By: Paul A. Heckert
Aug 25, 2008
Interference of Coherent Light Waves: Young's Double-Slit Formula Used for Measurement of Wavelength
By: Harry P. Schlanger
Aug 23, 2008
College Physics Laboratory Tips: How to Succeed in a Conceptual, Algebra, or Calculus Based Lab
By: Paul A. Heckert
Aug 22, 2008
Success in College Physics Classes: How Students Can Succeed in a Calculus or Algebra Based Course
By: Paul A. Heckert
Aug 21, 2008
Selecting the Right Physics Course: Introductory Classes Can Be Conceptual, Algebra-, or Calculus-Based
By: Paul A. Heckert
Aug 12, 2008
The Large Scale of the Universe: A Journey from Deep Space to the Earth
By: Robert Harrand
Aug 12, 2008
The Small Scale of the Universe: A Journey from Our World to the Limits of Knowledge
By: Robert Harrand
Aug 7, 2008
Understanding Convection Currents: Convective Heat Energy Transfer in a Circulating Liquid or Gas
By: Paul A. Heckert
Aug 7, 2008
Physics of Blood Pressure: Physical Meaning of Diastolic, Systolic, High, or Low Readings
By: Paul A. Heckert
Aug 6, 2008
Measuring Sound Intensity and Loudness: Adopting the Decibel Scale to Objectively Measure Sound
By: Harry P. Schlanger
Aug 2, 2008
Diffraction of Sound Waves: The Bending of Pressure Waves Around Obstacles or Narrow Openings
By: Harry P. Schlanger
Aug 1, 2008
Representing Sound as Pressure Waves: Longitudinal Wave Characteristics Travelling Through Different Media
By: Harry P. Schlanger
Jul 28, 2008
Latent Heat Fusion & Vaporization: Energy Needed for Phase Change Between Solid, Liquid, & Gas
By: Paul A. Heckert
Jul 23, 2008
Why Continental Climates are Extreme: Heat Capacity of Large Water Bodies Moderates Temperatures
By: Paul A. Heckert
Jul 21, 2008
Specific Heat Capacity: Thermal Energy Needed To Change an Object's Temperature
By: Paul A. Heckert
Jul 20, 2008
Temperature and Heat Content: Random Molecular Kinetic Energy and Total Thermal Energy
By: Paul A. Heckert
Jul 7, 2008
Physics of Weight Loss Programs: Conservation of Energy, Exercise, Diets, & Staying or Becoming Slim
By: Paul A. Heckert
Jun 10, 2008
Physics of Sweating: Why Evaporating Sweat Cools our Bodies in Hot Weather
By: Paul A. Heckert
Jun 4, 2008
Weight of Earth's Atmosphere: Gravity, Force, and Pressure in Fluids & the Power of Physics
By: Paul A. Heckert
Jun 1, 2008
Understanding Pascal's Principle: Pascal, Pressure, Force, Physics of Fluids, & Hydraulic Engineering
By: Paul A. Heckert
Jun 1, 2008
Understanding Pressure in Physics: The Physical Concept of Force Divided by Area and its Applications
By: Paul A. Heckert
May 10, 2008
The PN Diode as a Circuit Switch: Using the Ideal Diode Concept of a Switch to Analyse Simple Circuits
By: Harry P. Schlanger
Apr 8, 2008
The Twin Paradox: One of Special Relativity's Most Important Thought Experiments
By: Isaac M. McPhee
Apr 5, 2008
Traveling at the Speed of Light: Albert Einstein's Special Relativity and Cosmic Speed Limits
By: Isaac M. McPhee
Apr 3, 2008
What is a Black Hole? The Origin and Present Perspective on these Cosmic Wonders
By: Isaac M. McPhee
Mar 16, 2008
Archimedes' Principle: Archimedes, Buoyant Force, Floating Objects, and a Gold Crown
By: Paul A. Heckert
Feb 18, 2008
Quantum Cryptography: The Frontiers of Secrecy
By: Isaac M. McPhee
Feb 15, 2008
The Legacy of General Relativity: Einstein’s Greatest Theory and its Effect on the Scientific World
By: Isaac M. McPhee
Feb 13, 2008
Gravity and General Relativity: Einstein's Revolutionary Theory of Curved Spacetime
By: Isaac M. McPhee
Feb 6, 2008
Relativity and Bending Light: Albert Einstein’s Most Famous Prediction of General Relativity
By: Isaac M. McPhee
Feb 3, 2008
The Equivalence Principle: Einstein's "Happiest Thought" and the General Theory of Relativity
By: Isaac M. McPhee
Feb 1, 2008
The Universe's Fourth Dimension: Herman Minkowski, Albert Einstein, and the Creation of Space-Time
By: Isaac M. McPhee
Jan 31, 2008
Nuclear Chain Reactions: How Atomic Weapons Really Work
By: Isaac M. McPhee
Jan 30, 2008
The Equivalence of Mass and Energy: Special Relativity and E = mc²
By: Isaac M. McPhee
Jan 29, 2008
The Addition of Velocities: How Special Relativity and the Constant Speed Affect Measurement
By: Isaac M. McPhee
Jan 28, 2008
Time and Space Dilation: Einstein's Answer to the Problem with the Speed of Light
By: Isaac M. McPhee
Jan 27, 2008
The Lorentz Transformation: Reconciling Space and Time with the Speed of Light
By: Isaac M. McPhee
Jan 27, 2008
Simultaneity and Relativity: Proof of The Flexibility of Time and Space
By: Isaac M. McPhee
Jan 26, 2008
Relativity and Electromagnetism: The Problem with the Speed of Light
By: Isaac M. McPhee
Jan 25, 2008
The Speed of Light: How The Study of Electromagnetism Affected Science
By: Isaac M. McPhee
Jan 25, 2008
The Study of Light: The History of Illumination
By: Isaac M. McPhee
Jan 24, 2008
Galilean Relativity: So Many Trains, so Little Time
By: Isaac M. McPhee
Jan 24, 2008
Induction vs. Deduction in Science: The Techniques Involved in Creating a Good Scientific Theory
By: Isaac M. McPhee
Jan 4, 2008
What are Vectors and Scalars: Types of Quantities in Physics Depend on Importance of Direction
By: Paul A. Heckert
Jan 3, 2008
Understanding Mass and Weight: Fundamental Physics Concepts Related by Acceleration due to Gravity
By: Paul A. Heckert
Jan 3, 2008
Understanding Mass: Fundamental Quantity in Physics Measures the Amount of Matter
By: Paul A. Heckert
Dec 16, 2007
The Third Law of Thermodynamics: Carnot Cycle, Efficiency, Heat Engines, and Absolute Zero
By: Paul A. Heckert
Dec 16, 2007
Physics and Investment Fraud: Apply the Laws of Thermodynamics to Avoid Investor Scam
By: Paul A. Heckert
Dec 16, 2007
Perpetual Motion Machine: Violates First or Second Laws of Thermodynamics
By: Paul A. Heckert
Dec 9, 2007
Temperature Scales and Conversions: Fahrenheit, Celsius, Centigrade, Kelvin, and Converting Between Them
By: Paul A. Heckert
Dec 8, 2007
The Second Law of Thermodynamics: Entropy Increases and Efficiency of Heat Engines Is Less Than 100%
By: Paul A. Heckert
Dec 8, 2007
The First Law of Thermodynamics: Conservation of Energy in Disguise; Work Output Cannot Exceed Input
By: Paul A. Heckert
Dec 3, 2007
The Laws of Thermodynamics: Three Basic Principles Govern Thermal Physics, Heat, & Work
By: Paul A. Heckert
Nov 11, 2007
Microwave Ovens Heat Food Unevenly: Constructive and Destructive Interference of Electromagnetic Waves
By: Paul A. Heckert
Nov 11, 2007
Why no Metal in Microwave Ovens? Can Metallic Objects Be Inside; What About the Interior Walls?
By: Paul A. Heckert
Nov 11, 2007
How Do Microwave Ovens Work? Heating Water Molecules in Food with Electromagnetic Waves
By: Paul A. Heckert
Nov 6, 2007
Is Time Travel Possible? From Einstein to Hawking to The Multiverse Theory
By: Rebecca Turner
Nov 1, 2007
The Parallel Universe: Does The Multiverse Provide A Theory of Everything?
By: Rebecca Turner
Aug 11, 2007
Physical Fundamental Quantities: What is anything really?
By: Katharine M. J. Osborne
Jul 25, 2007
Why Is Ultraviolet Light Harmful? Protecting your skin from sun damage
By: Katharine M. J. Osborne
Jul 12, 2007
States of Matter: A Comprehensive list
By: Katharine M. J. Osborne
Jul 5, 2007
Plasma: Ionized Matter
By: Katharine M. J. Osborne
Jun 14, 2007
Physics vs. Metaphysics: The Big Questions
By: Katharine M. J. Osborne
May 30, 2007
Cymatics: The Art of Sound
By: Katharine M. J. Osborne
May 15, 2007
Bernoulli's Principle and Storms: Why a Tornado or Hurricane Can Lift the Roof off a House
By: Paul A. Heckert
May 10, 2007
Bernoulli Effect While Driving: Examples of Bernoulli's Principle: Convertibles and Passing Traffic
By: Paul A. Heckert
Apr 30, 2007
Doppler Effect for Moving Objects: A Red Shift or Blue Shift in Light and a Pitch Change in Sound
By: Paul A. Heckert
Apr 1, 2007
Einstein's General Relativity: A Simplified Explanation of the General Theory of Relativity
By: Paul A. Heckert
Mar 25, 2007
The Physics of the Buffyverse: Book Review
By: Katharine M. J. Osborne
Mar 18, 2007
Basic or Applied Research: Basic Research, X-rays, and Unforeseen Applications
By: Paul A. Heckert
Mar 15, 2007
Einstein's Special Relativity: Time Dilation, Lorentz Contraction, and Other Relativity Effects
By: Paul A. Heckert
Mar 9, 2007
Bernoulli's Principle Examples: Airplane Wings and Curve Balls Use Bernoulli's Principle
By: Paul A. Heckert
Mar 5, 2007
Physics Homework Help: A Strategy for Solving Physics Homework Problems
By: Paul A. Heckert
Mar 3, 2007
Review: The Physics Classroom: Basic Help for High School Physics
By: Katharine M. J. Osborne
Feb 17, 2007
Beyond the Big Bang: The Accelerated Expansion of the Universe
By: Katharine M. J. Osborne
Jan 27, 2007
The Best Modern Books on Physics: Lighter reading than you might think
By: Katharine M. J. Osborne
Dec 29, 2006
Absolute Zero: When It's Very Cold
By: Katharine M. J. Osborne
Dec 16, 2006
Answers to Puzzles of the Elements: Fun with symbols, units, and constants
By: Katharine M. J. Osborne
Dec 8, 2006
Puzzles of the Elements: Fun with symbols, units, and constants
By: Katharine M. J. Osborne
Oct 7, 2006
Energy and Information: The Dance of Particles and Bits
By: Katharine M. J. Osborne
Sep 29, 2006
Ball Lightning: An Enigma of Electromagnetism
By: Katharine M. J. Osborne
Sep 22, 2006
Book Review: Flatland: A perfect primer on higher dimensions
By: Katharine M. J. Osborne
Sep 9, 2006
The Peculiar Vocabulary of Physics: Naming Strange New Things
By: Katharine M. J. Osborne
Sep 3, 2006
Book Review: Quantum Enigma: Quantum Physics Connects with Consciousness
By: Katharine M. J. Osborne
Aug 25, 2006
Dark Matter: Searching for the Elusive Mass of the Universe
By: Katharine M. J. Osborne
How to subscribe to feeds
|