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==Mechanics== [[File:Fragment of an Attic red-figure krater depicting two adolescent girls on a see-saw.jpg|thumb|Fragment of an [[Attica|Attic]] [[red-figure pottery|red-figure]] [[krater]] by the Leningrad Painter dating between c. 470 and c. 460 BCE, currently held in the [[Museum of Fine Arts, Boston|Museum of Fine Arts]], depicting two adolescent girls playing on a see-saw]] Mechanically, a seesaw is a [[lever]] which consists of a beam and fulcrum with the effort and load on either side.<ref name=mech>{{cite book | last = Benedek |first = George Bernard | title = Physics, with Illustrative Examples from Medicine and Biology: Mechanics | year = 2000 | publisher = Springer | location = New York | isbn = 978-0-387-98769-9 | pages = 379}}</ref>
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