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“Quantum theory” is the original name for the field that became known as “quantum mechanics" (which see). The connotations(...) - Read More

In classical physics, events are random only due to insufficient information. Let’s take the example of a coin toss. With an(...) - Read More

Renormalization is a technique for achieving greater precision in certain physics theories.* In quantum mechanics,(...) - Read More

Rotational momentum is the same thing as “angular momentum.” It is the momentum or oomph that an object has when it rotates(...) - Read More

A scanning tunneling microscope (STM) is a type of electron microscope. It is much more powerful than an ordinary microscope(...) - Read More

[This article is under construction.]

The Schrodinger Cat(...) - Read More

“Singularity” has a physics definition and a mathematical definition. Both definitions are given here. They fit together(...) - Read More

See alpha, α. - Read More

Spin is a property of subatomic and atomic particles. While spin was originally thought of as a particle twirling on its(...) - Read More

(Also called a “Stern-Gerlach machine.”) The Stern-Gerlach (SG) device detects the “quantum spin” of atoms and subatomic(...) - Read More

Click for quantum superposition or click for superposition of classical waves. - Read More

This article is about superpositions of waves as understood In classical physics. See superposition, quantum mechanics for(...) - Read More

The term "superposition" is used in both classical physics and quantum physics. In this article, "superposition" is(...) - Read More

A Tesla is a unit for measuring the strength of magnetism in any particular location. A Tesla is approximately the strength(...) - Read More

Theoretical physics is one of two branches of physics: theoretical and experimental. Like almost all other types of physics,(...) - Read More

For torque, see “moment of force.” - Read More

See entry for quantum randomness. - Read More

A wave is a movement that propagates through a medium. The accompanying animation demonstrates the motion of a seismic wave,(...) - Read More

This article starts with the nature of wave equations in classical physics and moves into a brief description of the(...) - Read More

See frequency. - Read More