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i
 imaginary number
An imaginary number is one that includes the square root of 1, written √(1). While one might think that such a number(...) Read More
 indeterminacy
“Indeterminacy” or “quantum indeterminacy” refers to the uncertainty of results when measuring certain pairs of properties(...) Read More
 Indeterminacy Principle
The “Indeterminacy Principle” is another name for the Heisenberg Uncertainty Principle (HUP). See the Heisenberg Uncertainty(...) Read More
 interpretation of quantum mechanics
An interpretation of quantum mechanics describes the nature of reality in the quantum realm. Quantum mechanics is a set of(...) Read More
 ion
An ion is formed when an atom gains or loses an electron. An atom which has lost one or more electrons has a positive(...) Read More
 ionize
To ionize is to convert a substance from atomic or molecular form to ions.
An ion is a type of atom that has an imbalance(...) Read More
 isotope
Isotopes are a special kind of atom. Atoms with the same number of protons but different numbers of neutrons are isotopes of(...) Read More

j
 Joule
A Joule is a unit for measuring energy. It's the amount of energy needed to lift a medium tomato one meter off the surface(...) Read More

l
 Law of Conservation of Energy
The Law of Conservation of Energy says that the amount of energy in an isolated system remains constant. Energy cannot be(...) Read More
 Law of Conservation of Matter
The Law of Conservation of Matter was abandoned as inaccurate by physicists early in the 1900’s. For more information, see(...) Read More
 linear momentum
Linear momentum is the oomph something has due to having mass that’s in motion. If a football player were to ram into a(...) Read More
 lines of force
“Lines of force” can best be explained with an illustration. The photo shows the lines of magnetic force created with a(...) Read More
 local realism
[This article is under construction.]
Local realism is a quick way of saying two principles: 1) Principle of locality:(...) Read More
 locality
In everyday life, we assume the principle of locality. Here’s the principle of locality: Causing an effect on an object or(...) Read More
 logical
Logical reasoning is reasoning that draws conclusions based on correct understanding of relationships. Here are examples of(...) Read More

m
 magnetic moment
The magnetic moment is the strength of the response of a piece of metal to a magnetic field. It is a measure of the degree(...) Read More
 magnetic moment of the electron
The magnetic moment of an electron is symbolized as g and is called the “gfactor.”
The magnetic moment is the degree to(...) Read More
 mathematical constant
Pi and e are examples of mathematical constants. A mathematical constant has the same value no matter which mathematical(...) Read More
 measurement in quantum mechanics
(Also called “observation”). Measurement is of considerable consequence in the quantum world. At least in some(...) Read More
 Measurement Problem
Understanding the Measurement Problem requires understanding the unique role of measurement in quantum mechanics. The entry(...) Read More