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Fulcrum

usgb/ˈfʊlkrəm/Volume
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Physical PivotPlay
In physical contexts, 'fulcrum' refers to the actual point that supports movement. SlideThe engineer explained that the fulcrum must be stable for the bridge to open smoothly.
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Not Always VisiblePlay
'Fulcrum' may be an unseen part inside a mechanism, vital for its operation. SlideThe clock stopped working because the fulcrum in the mechanism was displaced.
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Balance EssentialPlay
'Fulcrum' implies balance, as it's the stabilizing factor in a lever system. SlidePlace the fulcrum under the board's center to evenly balance the weight.