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
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- 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
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Famous quotes containing the words science and, science and/or mathematics:
“The sweetest and most inoffensive path of life leads through the avenues of science and learning; and whoever can either remove any obstructions in this way, or open up any new prospect, ought so far to be esteemed a benefactor to mankind.”
—David Hume (1711–1776)
“Whilst Marx turned the Hegelian dialectic outwards, making it an instrument with which he could interpret the facts of history and so arrive at an objective science which insists on the translation of theory into action, Kierkegaard, on the other hand, turned the same instruments inwards, for the examination of his own soul or psychology, arriving at a subjective philosophy which involved him in the deepest pessimism and despair of action.”
—Sir Herbert Read (1893–1968)
“It is a monstrous thing to force a child to learn Latin or Greek or mathematics on the ground that they are an indispensable gymnastic for the mental powers. It would be monstrous even if it were true.”
—George Bernard Shaw (1856–1950)