What is lever?

  • (noun): A simple machine that gives a mechanical advantage when given a fulcrum.
    See also — Additional definitions below

Lever

A lever ( /ˈlɛvər/ or /ˈliːvər/) is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. It is one of the six simple machines identified by Renaissance scientists. The word comes from the French lever, "to raise", cf. a levant. A lever amplifies an input force to provide a greater output force, which is said to provide leverage. The ratio of the output force to the input force is the ideal mechanical advantage of the lever.

Read more about Lever.

Some articles on lever:

List Of Mills In Bolton - Other Wards
... Breightmet Bromley Cross Crompton Farnworth- see above Great Lever- see above Halliwell Harper Green Heaton and Lostock Hulton Kearsley Little Lever and Darcy Lever Rumworth ...
Lever (surname)
... Lever is a surname ... Notable people with the surname include Johnny Lever, a Bollywood actor William Lever, 1st Viscount Leverhulme, English industrialist and Member of Parliament the primary founder of ... Lafayette Lever, an American professional basketball player in the NBA Sir Hardman Lever, 1st Baronet Tim Lever, a former member of British pop group Dead or Alive John Lever ...
Loving Leah - Cast
... of Irena Sendler" Lauren Ambrose as Leah Lever Adam Kaufman as Jake Lever Susie Essman as Malka Ricki Lake as Rabbi Gerry Christy Pusz as Carol Mercedes Ruehl as Janice Lever ...
List Of Collieries In Lancashire Since 1854 - Bolton Area
... Hall, Blackrod Arley, Blackrod Back o'th Barn, Little Lever - (later renamed Ladyshore) Bally, Little Lever Bank House, Middle Hulton Bents, Little Lever ...
Lever, Portugal
... Lever is a Portuguese town and a parish in the municipality of Vila Nova de Gaia ... de Gaia Municipality Arcozelo Avintes Canelas Canidelo Crestuma Grijó Gulpilhares Lever Madalena Mafamude Olival Oliveira do Douro Pedroso Perosinho Sandim São Fél ...

More definitions of "lever":

  • (noun): A rigid bar pivoted about a fulcrum.
  • (verb): To move or force, especially in an effort to get something open.
    Synonyms: pry, prise, prize, jimmy
  • (noun): A flat metal tumbler in a lever lock.
    Synonyms: lever tumbler

Famous quotes containing the word lever:

    There is an inner world; and a spiritual faculty of discerning it with absolute clearness, nay, with the most minute and brilliant distinctness. But it is part of our earthly lot that it is the outer world, in which we are encased, which is the lever that brings that spiritual faculty into play.
    —E.T.A.W. (Ernst Theodor Amadeus Wilhelm)

    Now William pulled the lever down,
    And click-clack went the printing-press.
    William was the only printer in town
    Who had peeped while the angels undress.
    Allen Tate (1899–1979)

    Och, Dublin City, there is no doubtin’,
    Bates every city upon the say;
    ‘Tis there you’ll see O’Connell spoutin’,
    An’ Lady Morgan makin’ tay;
    For ‘tis the capital of the finest nation,
    Wid charmin’ pisintry on a fruitful sod,
    Fightin’ like divils for conciliation
    An’ hatin’ each other for the love of God.
    —Charles James Lever (1809–1872)