Physics Sitemap - Page 2 2016-09-26

The Heisenberg Uncertainty Principle
Heisenberg's uncertainty principle is one of the cornerstones of quantum physics, but it is often not deeply understood by those who have not carefully studied it.

Sports Science Books
These books lay bare the science behind some of the most popular (and less popular) sports out there. For someone who's passionate about sports, this provides a great opportunity to use that passion as a springboard to a greater understanding of scientific concepts.

Participatory Anthropic Principle (PAP)
Definition of Participatory Anthropic Principle (PAP)

Quantum Physics Books - books about quantum physics - list of quantum physics books
A list of books about quantum physics.

1933 Nobel Prize in Physics
The 1933 Nobel Prize in Physics was awarded to two physicists central in developing the quantum physics needed for a robust atomic theory.

1932 Nobel Prize in Physics
The 1932 Nobel Prize in Physics was awarded to Werner Heisenberg for his work in developing the mathematical basis of the field of quantum mechanics.

Who was Werner Heisenberg?
Werner Heisenberg was one of the key figures in the early development of quantum mechanics, particularly well known for the development of his uncertainty principle.

2014 Nobel Prize in Physics
The 2014 Nobel Prize in Physics was awarded to three physicists whose work led to the development of more efficient light-emitting diodes.

What Are the Fundamental Forces of Physics?
An overview of the four fundamental forces of physics and why they are so fundamental.

Cosmos: A Spacetime Odyssey, episode 10, The Electric Boy
Cosmos explores the earliest discoveries of the electronic age through the life and scientific work of Michael Faraday.

Unified Field Theory - Albert Einstein
Learn the definition of unified field theory, or grand unified theory--a term coined by Albert Einstein. Learn this and other physics terms.

Wave Particle Duality - an Overview
We explore wave particle duality: the particle properties of waves and the wave particles of particles. What do these strange properties mean? How can we use them to understand physics?

Michael Faraday
Michael Faraday became a largely self-taught experimental physicist. Among his achievements was a revolution in the understanding of electromagnetism.

An Overview of Electronics (In Physics)
Profile of the field of electronics

1964 Nobel Prize in Physics
The 1964 Nobel Prize in Physics went to three of the physicists instrumental in the creation of the first lasers.

James Clerk Maxwell
The physicist James Clerk Maxwell formulated a series of equations known as Maxwell's equations, which define the relationships of electromagnetism.

What Skills Do I Need to Study Physics?
If someone is interested in physics and wants to pursue it in college and as a career, there are a number of fundamental concepts they must become familiar with.

Stephen Hawking - Biography and Profile
Physicist and cosmologist Stephen Hawking is one of the most popular and respected modern physicists, a bestselling author and a popular Simpsons guest.

Loop Quantum Gravity
Loop quantum gravity explains the universe in terms of tangles in spacetime.

1995 Nobel Prize In Physics
In 1995, the Nobel Prize in physics went to two physicists who helped discover key elements of fundamental particle physics.

1991 Nobel Prize in Physics
The 1991 Physics Nobel Prize was awarded in recognition of mathematically describing the order within the complex physical structure of matter.

1992 Nobel Prize in Physics
The 1992 Nobel Prize in Physics went to Georges Charpak for work in the development and creation of particle detectors.

1993 Nobel Prize in Physics
The 1993 Nobel Prize in Physics was shared by Russell A. Hulse and Joseph H. Taylor, Jr., for the discovery of a new type of pulsar.

1994 Nobel Prize in Physics
The 1994 Nobel Prize in Physics went to Bertram N. Brockhouse and Clifford G. Shull for work in developing neutron scattering techniques.

SLAC Linear Accelerator Center
The SLAC LInear Accelerator Center in California is one of the key American research facilities for particle physics.

Books About the Higgs Boson
These books cover one of the largest efforts in the history of science, the international effort to discover the Higgs boson.

Neutrino - definition of a neutrino
definition of a neutrino. Physics.

The Electron as a Fundamental Particle
definition of electron - electron as a fundamental physics particle

Brian Cox - What's a rock star physicist like?
Brian Cox is known by some as the

What Is Radioactivity?
Radioactivity is the process by which atomic nuclei emit energy, in the form of electromagnetic radiation and particles, during decay.

Cosmic Ray Detector - How to Create a Cosmic Ray Detector
We teach you how to build your own cosmic ray detector.

Cosmic Ray Detector - How to Create a Cosmic Ray Detector
We teach you how to build your own cosmic ray detector.

Cosmic Ray Detector - How to Create a Cosmic Ray Detector
We teach you how to build your own cosmic ray detector.

Cosmic Ray Detector - How to Create a Cosmic Ray Detector
We teach you how to build your own cosmic ray detector.

Cosmic Ray Detector - How to Create a Cosmic Ray Detector
We teach you how to build your own cosmic ray detector.

Cosmic Ray Detector - How to Create a Cosmic Ray Detector
We teach you how to build your own cosmic ray detector.

Cosmic Ray Detector - How to Create a Cosmic Ray Detector
We teach you how to build your own cosmic ray detector.

Brownian Motion
Brownian motion describes the random way that particles move when floating in a fluid.

My Brief History by Stephen Hawking - Physics Book Review
Brilliant physicist Stephen Hawking writes an autobiography detailing both his personal and scientific life.

Film Review: The Theory of Everything
The film The Theory of Everything is a modern love story, built around the amazing life of revolutionary cosmologist Stephen Hawking.

Particle Fever - Physics Documentary
The documentary Particle Fever explores the creation of the Large Hadron Collider and the physics behind it.

Enrico Fermi - Biographical Profile
Enrico Fermi was an Italian physicist who helped develop key understanding in the early years of atomic, nuclear, and particle physics.

Weak Nuclear Force
The weak nuclear force is one of the fundamental forces of physics.

Alpha Decay
Alpha decay is one of the processes of radioactive decay.

Gamma Decay
Gamma decay is a form of radioactive decay in which the emitted radiation is in the form of electromagnetic radiation.

Beta Decay
Beta decay was one of the earliest forms of radioactive decay, though we now know it actually comes in three varieties.

Bose-Einstein Condensate Definition
Definition of the Bose-Einstein condensate.

Superfluid - definition of superfluid
Definition of a superfluid. Physics.

1996 Nobel Prize in Physics
In 1996, the three researchers who received the Nobel Prize in Physics did so for creating a new form of matter, which had been predicted by Albert Einstein.

Physics Book Review: Beyond the God Particle
In Beyond the God Particle, Nobel Laureate Leon Lederman (who coined the term

Books on Scientific Revolutions
Scientific progress is largely defined by transformative periods of rapid growth. These books focus on these scientific revolutions and their impact.

Book Review: The Clockwork Universe
This history focuses on the dawn of the modern, scientific age, through the lens of the formation of the Royal Society in England.

Physics Book Review Genius
In this biography, James Gleick explores the unique genius of Richard Feynman, one of the greatest scientific minds of the twentieth century.

Physics Book Review: The Particle At the End of the Universe by Sean Carroll
Physicist and popular science blogger Sean Carroll releases a book that explores the search for the Higgs boson.

Physics Book Review: The Quantum Moment
This book is built around a course at Stony Brook University, exploring the physics and philosophical implications of the quantum revolution.

Definition of a Quark as It Relates to Physics
Read about the definition of quark as well as the meaning of an antiquark and their importance in the world of physics.

Gluon - Definition of a Gluon
Definition of a Gluon. Physics.

What Are Boltzmann Brains? - Physics Definition
If the laws of thermodynamics are considered at their most fundamental level, what sort of consciousness would be most likely to exist? The curious result is a bizarre concept called a Boltzmann brain.

TOTEM Experiment
The TOTEM experiment at the Large Hadron Collider is attempting to make the most precise measurements to date of the proton size and structure.

1997 Nobel Prize in Physics
The 1997 Nobel Prize in Physics was awarded to three physicists for groundbreaking work in development of laser cooling techniques to trap atoms.

Strong Force
The strong nuclear force is the fundamental force of physics forming protons and neutrons with quarks and holding the atomic nucleus together.

ALICE Experiment
One of the many experimental devices and teams operating out of the Large Hadron Collider, ALICE focuses on the study of heavy ion collisions.

CMS Experiment
One of the major experiments being run at the Large Hadron Collisder is the Compact Muon Solenoid (CMS) experiment.

ATLAS Experiment
Though we often talk of the Large Hadron Collider as one thing, it is really a series of experiments and collaborations, such as the ATLAS experiment.

Baryon Asymmetry
The early universe seems to have more matter than antimatter. This is called the mystery of baryon asymmetry.

Definition of Baryogenesis. Physics.

Strongly Interacting Massive Particles - SIMP
Hypothetical strongly interacting massive particles are the newest proposal for what could make up the mysterious dark matter in our universe.

What Is Dark Matter? Definition - Physics
Definition of dark matter. Physics.

Weakly Interacting Massive Particles (WIMPs) - definition of weakly interacting massive particles (WIMPs)
definition of weakly interacting massive particles (WIMPs)

Torque in Physics - Definition and Example
Torque is a term in physics that describes how a force causes a change in rotational motion.

Rotational Motion Overview
The most basic physics concepts involve objects moving in straight lines, and then moving in arcs and other two-dimensional motion, but these introductory physics concepts quickly evolve into a full understanding of motion of rotating objects.

Physics Book Review - Paradox: The Nine Greatest Enigmas in Physics by Jim Al-Khalili
In this 2012 book, physicist Jim Al-Khalili tackles a series of scientific

Speed Definition - Glossary of Physics Terms
Definition of speed. Physics.

What is the Grandfather Paradox?
Physics depends upon rules of cause and effect, but if you allow time travel, is it possible to eliminate the cause and still have the effect?

What Is Escape Velocity?
What goes up must come down? Not if it hits escape velocity! This is the speed at which an object can break free from the gravitational pull that holds it in place.

Higgs Boson - definition of a Higgs Boson
The Higg boson is the final element of the Standard Model of particle physics.

Homework Help: Calculating Escape Velocity
Escape velocity is the speed needed to escape the gravitational pull of a body. How do you calculate them? What are some examples?

Gravity on the Earth
Our most common experience with gravity is on the surface of the Earth and much of physics relates to it. This will tell you what you need to know about the Earth's gravity to keep from falling off into space ... actually, it will tell you a lot more than that.

Isobaric Process - Glossary Definition
definition of an isobaric process

Proton Spin Puzzle
Quantum physics predicted the existence of quarks, but the naive assumption about how those quarks contribute to a proton's quantum spin are wrong.

Boson - Definition of a Boson
Definition of a Boson. Physics.

Fermion - definition of a fermion
Definition of a fermion. Physics.

Time Dilation in Physics
The effects of time dilation are used often in science fiction stories, dating back to at least the 1930's.

The Fermi Paradox - "Where Is Everybody?"
The particle physicist Enrico Fermi is often credited with asking the question, in a statistical context,

The Drake Equation
The astronomer and astrophysicist Frank Drake proposed this equation to quantify the limits on number of possible alien civilizations.

Voltage Definition in Physics
Definition of Voltage. Physics.

"The Secret" and Physics: Errors in Best-Selling Book
The popular self-empowerment book

Force Definition in Physics
Definition of force, how force applies to physics

Description & Origins of Inflation Theory
Inflation theory is the idea in cosmology that in the very early stages after the universe's creation it underwent a rapid expansion, the effects of which can still be seen in the universe today.

Density of Common Substances
Find out the density of common substances.

Farewell to Reality by Jim Baggott
In his 2013 book, Jim Baggott argues that modern theoretical physics is abandoning the search for scientific truth in favor of

What Is the Techni-Higgs?
While most physicists believe the Large Hadron Collider has detected the Higgs boson, some researchers wonder if there are any other explanations.

What Are the Possible Interpretations of Quantum Mechanics?
Over the last century, physicists have developed several interpretations of quantum physics, but no one fully understands why it works ... or how.

Definition of Power in Physics
Definition of power. Physics.

Definition of Wormhole - Theory of Relativity
definition of a wormhole. Physics.

Scientific Definition of a Laser
definition of a laser. Physics.

Isochoric Process Definition and Use
definition of an isochoric process

Proton - Definition of Physics Terms
Definition of a proton. Physics.

Plasma Definition and Early History
Definition of plasma. Physics.

Vector - Definition of Physics Term
Definition of a vector. Physics.

Definition of Absolute Zero
definition of absolute zero. Physics.

The Physics of the Star of Bethlehem
What is known about the Christmas star, the Star of Bethlehem? Does physics have anything to say about it?

Definition of falsifiability. Physics.

What Happens Inside a Black Hole?
Physicists at the University of Colorado, Boulder, have created a computer simulation that predicts how it would

The Importance of Education
In my view, education is the single most important activity there is. If there is good education, then I think everything else takes care of itself, on every

Physics Mailbag: Heat Transfer

The Physics of God's Not Dead
The Christian film God's Not Dead invokes some physics on both the pro-Christian and pro-atheist side of its arguments. Is the science portrayed well? What is left out?

String Theory Landscape
It turns out that string theory has a virtually infinite number of possible solutions, meaning it's not so much a single theory as an entire

quantum parallelism - definition of quantum parallelism
definition of quantum parallelism

Quantum Optics - What is Quantum Optics?
Learn about quantum optics, the field of physics where the study of individual photons is crucial to understanding the nature of the behavior of electromagnetic waves as a whole.

2004 Nobel Prize in Physics
The 2004 Nobel Prize in Physics was awarded to three physicists for groundbreaking work in understanding the theory of the strong interaction.

Books on Thinking Scientifically
Some books don't neatly fall into a category, but their goal is to overall help you think in a scientific way. I've collected a list of some books in this regard which may be of interest. Enjoy!

Physics Podcasts
There are a lot of people out there talking physics and some of them are doing it on podcasts, which allow you to download them for listening at your convenience. We maintain a list of some of the more interesting science podcasts.

Big Bang Theory Episode 5.06 - "The Rhinitis Revelation"
Sheldon's mother comes into town for a visit and seems more interested in spending time with his friends than with him.

The Theoretical Minimum - Physics Book Review
In THE THEORETICAL MINIMUM, physicist Leonard Susskind's popular internet lectures on what you need to know to move to the next level in physics are collected together for the reader. This math-filled volume provides solid foundations needed to really understand how physicists tackle classical mechanics.

Angular Momentum
Definition of angular momentum. Physics.

Definition of gedankenexperiment

Thermodynamics Arrow of Time
Definition of a Thermodynamics arrow of time

Chaotic Inflation
Definition of Chaotic Inflation. Physics.

Physics Book Review: The Beginning of Infinity by David Deutsch
Theoretical physicist David Deutsch explores how science understands things and progresses by providing better explanations.

Big Bang Theory Episode 6.04 - "The Re-Entry Minimization"
In episode 6.04, Howard's homecoming from space is not all that he expected.

What is Olbers' Paradox?
Olbers' paradox is an ancient question: Why is the night sky dark? If space goes on infinitely far in all directions, then light from all of those stars should be making their way to us, turning the night sky as bright as day (or brighter). The fact that it's dark is in itself a good reason to believe in a non-static universe.

Brian Greene - Biographical Profile
A biographical profile of theoretical physicist and bestselling author Brian Greene.

The Big Bang Theory - Episode 1.13 -"The Bat Jar Conjecture"
Sheldon finds himself ostracized from the rest of his Physics Bowl team

Definition of instrumentalism. Physics.

What is Model-Dependent Realism?
In their 2010 book The Grand Design, physicists Stephen Hawking and Leonard Mlodinow have put forth an idea called

The Grand Design - physics book review of The Grand Design by Stephen Hawking & Leonard Mlodinow
The Grand Design by Stephen Hawking and Leonard Mlodinow explores the scientific reasoning behind the current explanation for the creation and development of the universe. The book received a lot of controversy upon release because it indicates the universe can be created without needing a God.

Copenhagen Interpretation of Quantum Mechanics
The classic understanding of quantum mechanics is called the Copenhagen interpretation, because it was developed out of the Niels Bohr's Copenhagen Institute in the early years of the twentieth century.

Introducing Science Graphic Guides
Icon Books has a series of great books that are graphic guides introducing key concepts and figures from history and science.

definition of convection. Physics.

What Are the Types of Parallel Universes?
Physicists often talk about parallel universes, but what exactly does this mean? Are there different types of parallel universes? What are they?

Muon Definition
definition of a muon particle. Physics.

Qubit Definition
definition of a qubit. Physics.

A History of Ancient Greek Physics
A brief overview of the physical sciences as discovered and practiced by the ancient Greeks.

Refraction Definition as Used in Physics
definition of refraction. Physics.

Quantum Mechanics: The Theoretical Minimum by Leonard Susskind
In this book, theoretical physicist Leonard Susskind goes into detail on the mathematics needed to study quantum mechanics.

Bra-Ket Notation
Quantum physics uses an unusual mathematical system called bra-ket notation, which mathematically describes a wavefunction evolving over time.

Big Bang Theory (Episode 2.3) The Barbarian Sublimation
Sheldon introduces Penny to the world of online fantasy gaming, and she quickly becomes addicted.

Cosmos: A Spacetime Odyssey, Episode 1, Standing Up in the Milky Way
In this premiere episode of the new 2014 series, astrophysicist Neil deGrasse Tyson takes viewers on a trip through what science tells us about our solar system and the Milky Way, and the history of how scientists discovered these truths about the furthest reaches of space.

Cosmos: A Spacetime Odyssey, Episode 2, Some of the Things That Molecules Do
In the second episode of the new Cosmos series, Neil deGrasse Tyson explores the wondrous ways that genetic molecules create life.

Cosmos: A Spacetime Odyssey, episode 3, When Knowledge Conquered Fear
In the third episode, Neil deGrasse Tyson explains how the human tendency to recognize patterns can identify hidden relationships in the universe.

Cosmos: A Spacetime Odyssey, episode 5, Hiding in the Light
The fifth episode of the new Cosmos series explores how understanding the working of light led understanding distant stars!

Cosmos: A Space-Time Odyssey, episode 7: The Clean Room
Dr. Tyson discusses how geochemist Clair Patterson's search to discover the age of the Earth led him to a movement to stop lead poisoning on a massive scale.

Cosmos: A Spacetime Odyssey, episode 8, Sisters of the Sun
Female astronomers, combating gender pressures in the early 20th century, uncover the foundations of what composes the stars.

Cosmos: A Spacetime Odyssey, episode 12, The World Set Free
Cosmos explains the science behind the greenhouse effect, on Earth and beyond, as well as the history of how we understood this phenomena.

Vaporization (Physics): Definition and Example
definition of vaporization. Physics.

'A Briefer History of Time' by Dr. Stephen Hawking Review
In this revision of his 1988 classic, Dr. Stephen Hawking provides a more concise view of the current state of theoretical physics and cosmology.

The Big Bang Theory 106 - "The Middle Earth Paradigm"
When the guys are invited to a Halloween party at Penny's apartment, Leonard takes it as an opportunity to try to ingratiate himself with her social group.

Kepler's Laws of Planetary Motion Introduction
Kepler's Laws describe, in three concise rules, the motion of orbital bodies in the solar system.

What Is Condensation in Physics?
definition of condensation. Physics.

Blackbody Radiation - the solution to the famous blackbody radiation experiment
Research in blackbody radiation created a major dilemma for classical physics. The problem was resolved by Max Planck in 1900 by introducing the concepts which laid the foundation for all of quantum mechanics.

Solution to the Famous Blackbody Radiation Experiment
Research in blackbody radiation created a major dilemma for classical physics. The problem was resolved by Max Planck in 1900 by introducing the concepts which laid the foundation for all of quantum mechanics. Page 2.

What Is Spectroscopy?
Definition of spectroscopy. Physics.

Dark Energy (Definition)
Definition of dark energy. Physics.

Interesting and Useful Physics Blogs
Some scientists and commentators have taken to the blogosphere to write blogs about physics. Here is a list of some of the most prominent physics blogs.

What is the Many Worlds Interpretation of Quantum Physics?
One of the most intriguing concepts in physics is the many worlds interpretation of quantum physics, which proposes that each possible outcome for any event takes place in an ever-branching series of realities.

Buoyancy - Glossary of Physics Terms
Definition of Buoyancy. Physics.

Definition of a Brane in String Theory
Definition of a brane. Physics.

Aristotle's Physics (Natural Philosophy)
A description of Aristotle's contributions to physics, or natural philosophy, as it was called at the time. Page 2.

Archimedes, Hipparchus, & Ptolemy - physics of the greeks Archimedes, Hipparchus, & Ptolemy
A look at the discoveries of the ancient Greek thinkers Archimedes, Hipparchus, and Ptolemy. Page 3.

Book Review: Our Mathematical Universe by Max Tegmark
In this 2014 book, MIT theoretical physicist Max Tegmark argues in favor of his mathematical universe hypothesis, in which our universe exists as a mathematical structure.

Oscillation - Definition of Physics Terms
Definition of oscillation. Physics.

Definition of Momentum in Physics
Definition of momentum. Physics.

Biographical Profile of Dr. Michio Kaku
Physicist & science popularizer Michio Kaku is a known face from television and voice from radio, where he presents physics concepts to a broad lay audience.

Acceleration in Physics - Definition
Definition of acceleration. Physics.

What Is Cosmology?
Cosmology is the discipline of physics that involves the study of the origins, history, and evolution of the universe and the objects within it.

Mass Definition and Units in Physics
Definition of mass. Physics.

Definition of Work in Physics
Definition of work. Physics.

De Broglie Wavelength Hypothesis Overview
We discuss the De Broglie hypothesis, which proposes that all matter exhibits wave-like properties and relates the observed wavelength of matter to its momentum.

Definition of a tetraquark, a potential new type of particle.

Life After Death: The Evidence
In Life After Death: The Evidence, political author and Christian apologist Dinesh D'Souza presents the most compelling arguments in favor of the concept of an afterlife, attempting to refute atheistic arguments that have received a great deal of public in recent years.

Inertia - Definition of Inertia - Physics Dictionary
Definition of inertia. Physics.

Photometry - Definitions of Photometry
Photometry frequently focuses on the perceived brightness to the human eye. As such, it takes into account the eye's sensitivity to varying degrees of light

Impulse - Definition of Impulse in Physics
Definition of impulse. Physics.

Angular Acceleration
Definition of angular acceleration

Discovery of Infrared Light
An unexpected result in a 1800 experiment leads to discovery of infrared radiation.

Film Review: The Unbelievers
Theoretical physicist Lawrence Krauss and evolutionary biologist Richard Dawkins star in a film that is a love letter to an evidence-based worldview.

Lawrence Krauss - Biographical Profile
Cosmologist Lawrence Krauss, of Arizona State University, is well known in the physics community (and beyond!) for being an avid popularizer of physics, through his speaking and writing on the subject for non-scientist audiences.

Nuclear Fission Definition and Related Physics
Definition of nuclear fission. Physics.

Nuclear Fusion - Physics Glossary Definition
Definition of nuclear fusion. Physics.

Quantum Gravity - Definition and Explanation
Quantum gravity, or unified field theory, is an attempt to unify Einstein's theory of general relativity with quantum physics.

Definition of polarization in physics.

Top Science Books of 2013
Looking for a new book that explores the wonders of science? This list is a great place to start ... at least for the year 2013.

Children's Science Books
A listing of science books aimed at young audiences

2013 Physics Holiday Gift Ideas
Looking for ideas for the science enthusiast this holiday season? This list presents some great examples.

Feynman Book List
A list of books by and about the great 20th century quantum physicist Richard P. Feynman

Richard Feynman Quotes
Richard Feynman is one of the most interesting personalities in twentieth century physics, and as a result he has no shortage of memorable quotes attributed to him.

Richard Feynman Quotes
Richard Feynman is one of the most interesting personalities in twentieth century physics, and as a result he has no shortage of memorable quotes attributed to him.

Top Picks - 2012 Physics Books
Top picks among the physics books released in 2012

Grand Ideas of Science - An Overview of James Trefil's Grand Ideas of Science
In his 2007 book, Why Science?, James Trefil outlines a number of topics,

Physics Games & Toys
A variety of physics toys & games, many of which have educational uses.

Television Shows Physicists Love
There are a lot of television shows beloved by physicists. Check out some of them, many of which are available on DVD.

TED Physics Videos
The international TED talks present some of the best

TED Physics Videos
The international TED talks present some of the best

Physics Experiment Books - A list of books with physics experiments and science projects in them
A list of books that contain physics experiments and projects.

Hubble Volume
Definition of a Hubble volume. Physics.

Mathematical Universe Hypothesis
The Mathematical Universe Hypothesis suggests that our external reality is actually a mathematical structure. This hypothesis was developed by MIT professor Max Tegmark and the subject of his 2014 book Our Mathematical Universe.

How Big is the Observable Universe?
What is the size of the known, observable universe? While many mysteries exist, this is actually one that we can do a pretty good job of answering.

Max Tegmark
Biographical profile of physicist Max Tegmark.

Max Planck - Biographical Profile
A biographical profile of the German physicist Max Planck, often considered the founder of quantum physics.

Decoherence and the Measurement Problem
Quantum wavefunction collapse is one of the thorniest conceptual problems in physics, and trying to understand its meaning is known as the

Measurement Problem
The measurement problem is of the great unsolved mysteries of quantum physics and lies right at the heart of understanding the foundations of nature itself. Why does the act of measurement in quantum physics cause a seeming change in the behavior of reality?

Erwin Schrodinger
Erwin Schrodinger was one of the key figures in the early development of quantum mechanics.

Neil deGrasse Tyson - Biographical Profile
Neil deGrasse Tyson has become known as one of the most popular and prolific science communicators of the early twenty-first century, largely through his role on PBS' popular science series NOVA and his resurrection of Carl Sagan's classic series COSMOS.

Definition of negentropy, or negative entropy

Parallel Worlds, Parallel Lives - a review of the BBC and PBS documentary Parallel Worlds, Parallel Lives
The documentary Parallel Worlds, Parallel Lives covers the history and formulation of the many world interpretation of quantum physics, as the creator's son searches to learn more about his father's life and work.

Heliocentric Model
definition of Heliocentric Model

Definition of calorimetry. Physics.

Letters to a Young Scientist by Edward O. Wilson
A review of the inspiring book Letters to a Young Scientist by biologist Edward O. Wilson

Energy for Future Presidents by Richard A. Muller
In this book, physicist Richard A. Muller takes uses his position as a converted skeptic of global warming to focus attention on the science behind the intense energy decisions facing our nation. Taking stances that will challenge the convictions of both political extremes, Muller explains the challenges of dealing with the twin hurdles that energy policy must confront: energy security and global warming.

Physics Book Review - War of the Worldviews by Leonard Mlodinow and Deepak Chopra
In War of the Worldviews, theoretical physicist Leonard Mlodinow challenges the claims of spiritualist Deepak Chopra, who believes that science is fundamentally missing a key element of reality by not accepting immaterial elements of reality. Mlodinow clearly articulates a strong scientific case rooted in naturalism and material causes of our experience ... even our subjective emotional experiences.

Physics Book Review: Time Reborn by Lee Smolin
A book review of the sure-to-be-controversial book TIME REBORN, by theoretical physicist Lee Smolin, which focuses on the

National Geographic: Angry Birds Furious Forces by Rhett Allain - Physics book review
A review of the book Angry Birds: Furious Forces from National Geographic, which uses the popular game franchise Angry Birds to illustrate some key concepts from physics.

Big Bang Theory Episode 6.12 - "The Egg Salad Equivalency"
In episode 6.12, Leonard gets in trouble for enjoying the attentions of another woman. When Sheldon tries to remedy the situation, he draws the ire of the university's human resources department.

Big Bang Theory Episode 6.13 - "The Bakersfield Expedition"
In episode 6.13, when the boys take a trip to Comic-Con in Bakersfield, they stop to get pictures in their Star Trek outfits and end up stranded, hitch-hiking back home. While doing this, the girls begin to understand what's so compelling about comic books.

Big Bang Theory Episode 6.14 - "The Cooper/Kripke Inversion"
In episode 6.14, Sheldon's rivalry with Kripke takes an odd turn, as Sheldon accidentally spreads false rumors about his relationship with Amy.

Big Bang Theory Episode 6.15 - "The Spoiler Alert Segmentation"
In episode 6.15, Leonard and Sheldon's differences come to a head, forcing a split between the roommates.

Big Bang Theory Episode 6.17 - "The Monster Isolation"
In episode 6.17,Raj vows to never leave his apartment after a failed date.

Big Bang Theory Episode 6.03 - "The Higgs Boson Observation"
In episode 6.03, Sheldon hires an attractive research assistant, putting Amy into a state of jealousy.

Physics Book Review: A Universe From Nothing by Lawrence M. Krauss
In his 2012 book, cosmologist Lawrence Krauss explains how modern science explains the mechanism for the universe to come into creation from nothingness.

Physics Book Review - Physics of the Future by Michio Kaku
In Physics of the Future, theoretical physicist Michio Kaku explores the cutting edge science that will shape the next century of human achievement.

Big Bang Theory - Episode 5.12 - "The Shiny Trinket Maneuver"
Sheldon makes a dating mistake by being disinterested in Amy's accomplishments, while Howard discovers that Bernadette doesn't like children.

Big Bang Theory - Episode 5.16 - "The Vacation Solution"
Sheldon is forced to use his vacation time, so he works with Amy in her biology lab.

Big Bang Theory - Episode 5.17 - "The Rothman Disintegration"
Sheldon and Kripke go to war over an empty office in the university, while Amy freaks Penny out with a present.

Big Bang Theory Episode 5.05 - "The Russian Rocket Reaction"
Sheldon & Leonard are invited to a party at Wil Wheaton's house, forcing Leonard to choose between a cool night and his loyalty to Sheldon.

Big Bang Theory Episode 4.1 - "The Robotic Manipulation"
Sheldon goes on a date. That pretty much says it all.

The Big Bang Theory - Episode 2.9 -"The White Asparagus Triangulation"
Sheldon is concerned that Leonard's poor track record with women will cut short his relationship with Stephanie, whom he actually does not object to having around. Therefore, he decides to intervene and help prevent Leonard from screwing things up.

The Big Bang Theory - Episode 1.9 -"The The Cooper-Hofstadter Polarization"
Leonard wants to present a paper that he co-authored with Sheldon, but Sheldon refuses, putting their friendship to the test.

Big Bang Theory - Episode 2.2 - "The Codpiece Topology"
As a rebound following his failed relationship with Penny, Leonard begins to date Sheldon's nemesis, Leslie Winkle.

NOVA: Fabric of the Cosmos - Physics Documentary Review
Brian Greene, in collaboration with PBS's science series NOVA, created a 4-part show based on his book that delves into the stuff that makes up the universe.

The Manga Guide to Electricity - Physics Book Review
The Manga Guide to Electricity explains the scientific facts about electricity within a manga-style comic book narrative.

Recombination Era
Definition of Recombination Era. Physics.

Lepton - Definition of a Lepton
Definition of a Lepton. Physics.

Quantum Zeno Effect
Definition of the Quantum Zeno Effect

Quantum Cosmology
definition of quantum cosmology. Physics.

definition of reductionism. Physics.

Quantum Consciousness
Definition of quantum consciousness

Quantum Mind
definition of quantum mind. Physics.

Rigid Body
Definition of a rigid body. Physics.

Magnetic Confinement Fusion
definition of Magnetic Confinement Fusion

Observer Effect
definition of Observer Effect. Physics.

definition of Frequentism. Physics.

Luminous Ether
Definition of luminous ether. Physics.

Virtual Particles
definition of virtual particles. Physics.

Thermal Equilibrium
definition of thermal equilibrium

Meissner Effect - Definition
Definition of the Meissner Effect

Quantum Locking
Definition of Quantum Locking. Physics.

Stellar Nucleosynthesis
Definition of stellar nucleosynthesis

Big Bang Nucleosynthesis
Definition of Big Bang Nucleosynthesis

Leonard Susskind - Biographical Profile
A biographical profile of theoretical physicist Leonard Susskind, whose insights have informed fields such as quantum physics, cosmology, and string theory.

Cosmological Principle
Definition of the cosmological principle

The History of Gravity
The development of the theory of gravity has a long history. Check it out, from Aristotle to the search for quantum gravity.

Kelvin's "Clouds" Speech - Physics History Moment
Lord Kelvin famously gave a 1900 speech in which he declared that physics was essentially finished, save for two

Hans Bethe - Biographical Profile
A biographical of Hans Bethe, one of the most influential physicists of the twentieth centuries, whose groundbreaking work helped develop the atomic bomb and also explain how stars generate the heavier elements in our universe.

2013 Nobel Prize in Physics
The 2013 Nobel Prize in Physics was awarded jointly to Francois Englert and Peter Higgs for their theoretical prediction of the mechanism by which empty space generates mass, which predicted the existence of the Higgs boson, evidence of which has been discovered at CERN's Large Hadron Collider.

What Is Momentum?
An explanation of momentum, how it is used and relates to the Second Law of Motion.

What is the Arrow of Time?
When physicists ask the question

Is Invisibility Possible?
From H.G. Wells' Invisible Man to Star Trek's cloaking devices to Harry Potter's cloak of invisibility, the prospect of turning invisible has long been a part of popular culture. Now it appears some scientists may be close to turning the dream of invisibility into a reality ... sort of.

What is the Alpher-Bethe-Gamow Paper?
The Alpher-Bethe-Gamow paper is a famous paper in the history of physics. In addition to laying the groundwork for how particles in our universe was created, it is amusing because the names of the three authors (one of whom wasn't directly involved) sounds like the first three letters of the Greek alphabet: alpha-beta-gamma.

Sonification - definition of sonification
Definition of sonification. Physics.

Charm Quark - definition of a charm quark
definition of charm quark. Physics.

Top Quark - definition of a top quark
definition of top quark. Physics.

Up Quark - definition of an up quark
Definition of Up Quark. Physics.

Albert Einstein Memorial - picture of the Albert Einstein Memorial at the National Academy of Sciences in Washington D.C.
Physics. Page 2.

Invention at Play Exhibit - the invention at play national museum of american history exhibit
A picture of the Invention at Play exhibit at the National Museum of American History in Washington, D.C. Page 4.

Jack Swigert Statue - statue of astronaut Jack Swigert in the Capitol Building
This statue of astronaut Jack Swigert, Apollo XIII astronaut (portrayed by Kevin Bacon in the film Apollo 13), is displayed by the state of Colorado inside of the Capitol Building. Page 9.

Lighting a Revolution Exhibit - National Museum of American History exhibit Lighting a Revolution
A picture of the entrance to the Lighting a Revolution display at the National Museum of American History. The exhibit honors the creation of the incandescent light bulb by Thomas Alva Edison. Page 7.

National Air & Space Museum - picture of the National Air and Space Museum in Washington D.C.
A picture of the entrance to the National Air and Space Museum in Washington, D.C. Page 3.

Spark!Lab (doorway view) - Smithsonian National Museum of American History
The Spark!Lab interactive science laboratory at the National Museum of American History in Washington, D.C. Page 6.

Spark!Lab - Front View of the Spark!Lab at the National Museum of American History
The Spark!Lab interactive science laboratory at the National Museum of American History in Washington, D.C. Page 5.

Vassar 1865 telescope used by Maria Mitchell - Maria Mitchell's telescope on display at the National Museum of American History
This Vassar telescope used by America's first female astronomer, Maria Mitchell, is on display in the Smithsonian National Museum of American History. Page 8.

The Universe (Cellular Structure of Space-Time)
In The Universe, Voss-Andreae imagines a cellular structure of space-time which is similar to a foam. Page 2.

Symmetry Break
In Symmetry Break, Julian Voss-Andreae depicts how a system in a situation with two possible minimum energy states to 'choose' which one it will occupy, by collapsing into that state. Page 5.

A series of 5 pieces called the "Spin Family", created by sculptor Julian Voss-Andreae
A series of 5 pieces called the

Prayer by Julian Voss-Andreae
Prayer, created by sculptor Julian Voss-Andreae. Page 8.

Quantum Man (smaller version)
Quantum Man (smaller version) is a sculpture by Julian Voss-Andreae. Page 6.

1965 Microwave Sky
The Microwave Sky, c. 1965. Physics.

CMB Scattering
Cosmic Microwave Background radiation scattering explained. Page 6.

COBE 4-year scan
Data from the 1989 COBE satellite, resulting from a four-year scan of the sky in all directions. Page 2.

Sky Map from Planck Telescope, with Descriptions
The microwave sky as seen by Planck Telescope, with descriptions. Page 5.

Sky Map from Planck Telescope
The microwave sky as seen by Planck Telescope. Page 4.

Timeline of the Universe
A timeline of the history of the universe. (June 2009). Page 8.

Content of the Universe - Pie Chart
A pie chart representing the different types of material that make up the universe. Page 7.

WMAP 7 Year Sky Map
The 7-year image of the cosmic microwave background radiation from the WMAP. Page 3.

Albert Einstein Memorial - picture of the Albert Einstein Memorial at the National Academy of Sciences in Washington D.C.
Physics. Page 5.

Albert Einstein Photographs
Photographs of Albert Einstein. Physics. Page 4.

Albert Einstein Photographs
Photographs of Albert Einstein. Physics. Page 2.

Albert Einstein Pictures
Pictures of Albert Einstein. Physics. Page 6.

Albert Einstein on a bike
A photograph of Albert Einstein riding his bicycle in Santa Barbara. Page 3.

Albert Einstein Pictures
Pictures of Albert Einstein. Physics. Page 7.

Supersymmetry - definition of supersymmetry
definition of supersymmetry. Physics.

Meson - definition of a meson
definition of a meson. Physics.

Cosmologist - definition of cosmologist
definition of cosmologist. Physics.

Definition of the Flatness Problem
definition of flatness problem. Physics.

Quantum Chromodynamics - definition of quantum chromodynamics
definition of quantum chromodynamics

holographic principle - definition of the holographic principle
definition of the holographic principle

What is the Holographic Multiverse?
One type of parallel universe predicted by modern physics is a

Physics Book Review - Physics of the Impossible - a review of Physics of the Impossible by Michio Kaku
In this book, physicist and popular author Dr. Michio Kaku explores what physics really has to say about

Multiples in Scientific Discovery
One of the most amazing patterns in the science is the bizarre regularity with which similar ideas are struck upon by multiple researchers working without any knowledge of the other. Find out about some of these curious

Albert Einstein Photographs
Photographs of Albert Einstein. Physics.

Grand Ideas of Science - An Overview of James Trefil's Grand Ideas of Science
In his 2007 book, Why Science?, James Trefil outlines a number of topics,

George E. Smith - biographical profile of George E. Smith - George E. Smith wins 2009 nobel prize in physics
George E. Smith is one of the team of researchers who developed charge-coupled devices (CCDs) that have brought about a revolution in digital imaging technology. He has received numerous awards for this work, including the 2009 Nobel Prize in physics.

string - definition of string - what is a string in string theory?
definition of a string in string theory

Particle Accelerator - definition of a particle accelerator
definition of a particle accelerator

Coincidence Circuit - definition of a coincidence circuit
definition of a Coincidence Circuit.

Van der Waals' Forces - definition of Van der Waals' forces
A description of the Van der Waals' Forces that create weak intermolecular interactions.

National Academy of Sciences - Washington, D.C., headquarters of the National Academy of Sciences
A picture of the National Academy of Sciences building in Washington, D.C.

Big Bang Theory - Episode 2.1 - "The Bad Fish Paradigm"
In this episode (the season two premiere), Leonard and Penny complete their first date, but unfortunate romantic complications lead to Sheldon being trapped between them and moving in with Raj.

Physics Theories - theories in physics
Physics theories provide the basis upon which all of physics is built. As more theories are presented, experiments test them, attempting to falsify them and ultimately prove them ... but before this process can begin, the theory has to exist.

Magtastik - review of Mega Brands' Magtastiks preschool magnetic building system
Magtastik is a magnet-based building system composed of metallic balls and magnetic connector pieces. The pieces are similar to those of the Magnetix line of building toys, but larger, so that they are safe for use by preschool-age children. Find out more about this fun and intriguing line of toys.