What are periods?

Some articles on periods, period:

Snooker World Number Ones - Number One Players - Periods
... one in the world are listed below for each period since rankings officially began in 1976/77 ...
South Anchorage High School - General Information
... On Monday and Friday there are 6 classes, each divided into 50 minute periods ... On Tuesday students attend periods 1,2,4,5 Wednesday students attend periods 2,3,5,6 Thursday, students attend periods 1,3,4,6 ... On assembly days, class periods are shortened to make time at the end of the day ...
Startups, Shutdowns, And Malfunctions
... Startups, shutdowns, and malfunctions (SSM) are periods of non-continuous operation in refineries, chemical plants or similar industrial facilities ... During such temporary periods, these plants might emit larger amounts of pollution, and therefore the pollution abatement equipment may be unable to effectively control it ... which seemed to increase the allowable periods of such non-compliance periods, which motivated a coalition of environmental groups to challenge the changes, by ...
Sleep Deprivation - Physiological Effects - Microsleeps
... automatically shuts down, falling into a sleep state for a period that can last from a fraction of a second up to half a minute ... type of sleep has been seen in rats that have been kept awake for long periods of time ... Local regions went into periods of short (~80 ms) but frequent (~40/min) NREM-like state ...
Timeline Of The British Isles - Periods
... Ages (1286–1513) Wars of Scottish Independence (1296–1357) Early modern Britain Tudor period (1485–1603) Tudor conquest of Ireland English Renaissance ...

Famous quotes containing the word periods:

    How easily and cleverly do I write just now! I am really pleased with myself; words come skipping to me like lambs upon Moffat Hill; and I turn my periods smoothly and imperceptibly like a skilful wheelwright turning tops in a turning-loom. There’s fancy! There’s simile!
    James Boswell (1740–1795)

    Whose are the truly labored sentences? From the weak and flimsy periods of the politician and literary man, we are glad to turn even to the description of work, the simple record of the month’s labor in the farmer’s almanac, to restore our tone and spirits.
    Henry David Thoreau (1817–1862)

    The History of the world is not the theatre of happiness. Periods of happiness are blank pages in it, for they are periods of harmony—periods when the antithesis is in abeyance.
    Georg Wilhelm Friedrich Hegel (1770–1831)