Effective mass may refer to:
- Effective mass (solid-state physics), a property of an excitation in a crystal analogous to the mass of a free particle
- Effective mass (spring-mass system)
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Famous quotes containing the words effective and/or mass:
“Basically, I have no place in organized politics. By coming to the British Parliament, I’ve allowed the people to sacrifice me at the top and let go the more effective job I should be doing at the bottom.”
—Bernadette Devlin (b. 1947)
“While this America settles in the mould of its vulgarity, heavily
thickening to empire,
And protest, only a bubble in the molten mass, pops and sighs out,
and the mass hardens,”
—Robinson Jeffers (1887–1962)