Science and Mathematics
- Menstruation, a phase of the menstrual cycle in which the uterine lining is shed
- Orbital period, a concept in astronomy
- Period (gene), a gene in Drosophila involved in regulating circadian rhythm
- Period (geology), a subdivision of geologic time
- Periodic function and periodical, a function that repeats its values in regular intervals
- The period of a periodic function
- Periodic group in group theory
- Periods (ring) — the ring of numbers which can be expressed as integrals of algebraic differential forms over algebraically defined domains
- Pisano period
- Periodic table, a chart which lists all currently known chemical elements
-
- Period (periodic table), a horizontal row of the periodic table
- Periodic acid, an oxoacid of iodine
- Period (physics), the time taken for one full oscillation; it is the reciprocal of frequency
- Period of orbit
- Period of time
Read more about this topic: Period
Famous quotes containing the words science and/or mathematics:
“By an application of the theory of relativity to the taste of readers, to-day in Germany I am called a German man of science, and in England I am represented as a Swiss Jew. If I come to be regarded as a bête noire the descriptions will be reversed, and I shall become a Swiss Jew for the Germans and a German man of science for the English!”
—Albert Einstein (1879–1955)
“The three main medieval points of view regarding universals are designated by historians as realism, conceptualism, and nominalism. Essentially these same three doctrines reappear in twentieth-century surveys of the philosophy of mathematics under the new names logicism, intuitionism, and formalism.”
—Willard Van Orman Quine (b. 1908)