Balances {scale, weighing} {balance, scale}| can have V-shaped or horizontal beams, with pivot points at center and two pans at ends {weighing, scale}. Scales {pendulum scale} can pull against a pair of weighted pendulums. Balances {pan balance} can have pans. Balances {steelyard} can have one pan and a movable weight {poise, balance}, which can slide along a horizontal arm. Balances {platform weigher} can allow object to be anywhere on platform, because platform parallel linkage always keeps platform horizontal. Platforms can be on springs or have a steelyard.
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7-Machine-Kinds-Mechanical-Lever
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Date Modified: 2022.0224