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, science and/or mathematics:
“Consider the China pride and stagnant self-complacency of mankind. This generation inclines a little to congratulate itself on being the last of an illustrious line; and in Boston and London and Paris and Rome, thinking of its long descent, it speaks of its progress in art and science and literature with satisfaction.... It is the good Adam contemplating his own virtue.”
—Henry David Thoreau (1817–1862)
“What is done for science must also be done for art: accepting undesirable side effects for the sake of the main goal, and moreover diminishing their importance by making this main goal more magnificent. For one should reform forward, not backward: social illnesses, revolutions, are evolutions inhibited by a conserving stupidity.”
—Robert Musil (1880–1942)
“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)