- published: 27 Apr 2012
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A lever (/ˈliːvər/ or US /ˈlɛvər/) is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum. A lever is a rigid body capable of rotating on a point on itself. It is one of the six simple machines identified by Renaissance scientists. The word entered English about 1300 from Old French, in which the word was levier. This sprang from the stem of the verb lever, meaning "to raise". The verb, in turn, goes back to the Latin levare, itself from the adjective levis, meaning "light" (as in "not heavy"). The word's ultimate origin is the Proto-Indo-European (PIE) stem legwh-, meaning "light", "easy" or "nimble", among other things. The PIE stem also gave rise to the English word "light". 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 mechanical advantage of the lever.
The earliest remaining writings regarding levers date from the 3rd century BC and were provided by Archimedes. 'Give me a place to stand, and I shall move the Earth with it' is a remark of Archimedes who formally stated the correct mathematical principle of levers (quoted by Pappus of Alexandria). The distance required to do this might be exemplified in astronomical terms as the approximate distance to the Circinus galaxy (roughly 3.6 times the distance to the Andromeda Galaxy) - about 9 million light years.
Actors: Jorge Montesi (actor), Paul Zaza (composer), Jorge Montesi (producer), Jorge Montesi (editor), Jorge Montesi (director), Jorge Montesi (writer), Mike Douglas (actor), Philip Spink (miscellaneous crew), Joseph Patrick Finn (actor), Peter Haynes (actor), Peter Haynes (writer), Peter Haynes (producer), Christine MacInnis (actress), Deryck Hazel (actor), Bryan Fustukian (actor),
Genres: Thriller,Actors: Pierre Laroche (writer), Roger Coggio (actor), Noël Roquevert (actor), Fernand Sardou (actor), Jacques Loussier (composer), Pierre Laroche (writer), Junie Astor (actress), Michel Bardinet (actor), Suzanne Dehelly (actress), Jeanne Fusier-Gir (actress), Georges Van Parys (composer), Simone Renant (actress), Gérard Séty (actor), Marguerite Beaugé (editor), Sophie Grimaldi (actress),
Genres: Crime,Actors: Cyril Smith (actor), Alfred Roome (editor), Tom Walls (director), Peter Gawthorne (actor), Sara Allgood (actress), Tom Walls (actor), Michael Balcon (producer), Mervyn Johns (actor), Martita Hunt (actress), Robertson Hare (actor), Ben Travers (writer), J.H. Roberts (actor), Roy Emerton (actor), Sam Wilkinson (actor), H.G. Stoker (actor),
Genres: Comedy, Crime,Turn the mirrors face the wall
Don't you feel a little weak?
And I'd catch you when you fall
But you're falling all the time
Do you need it anymore?
Or do you need a little more?
Living your life like a bull in the trade
He doesn't know how it feels
Under my thumb like a bone under nail
She's in the know, how's it feel?
Live your life under machine guns
Canary down the mine
Maybe I'm on the lever
Spoiling my broth like a radio kid
Programmed computerised minds
Waving my luck under your nose