operatorIn mathematics, “operator” has two main definitions. 1) An operator is a mathematical symbol, for example +, that represents(...) Read More
orbitalIn the early 1900's, when physicists were first probing the insides of the atom, they thought that electrons might travel(...) Read More
orbital angular momentum(Symbol: ɭ or L). Electrons have two types of rotational motion: orbital angular momentum and spin. Orbital angular momentum(...) Read More
ordinary matterScientists call the everyday matter of our world, such as tables and chairs, “ordinary matter.” Ordinary matter is made up(...) Read More
oscillationDefinition (1): An oscillation is a repetitive back-and-forth motion. A pendulum swinging back and forth is an everyday(...) Read More
oscillatorAn oscillator is something that oscillates. Something that vibrates. See oscillation for more information.
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