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The balance (also balance scale, beam balance and laboratory balance) was the first mass measuring instrument invented. [1] In its traditional form, it consists of a pivoted horizontal lever with arms of equal length – the beam or tron – and a weighing pan [10] suspended from each arm (hence the plural name "scales " for a weighing instrument).
A Jolly balance from 1913. The Jolly balance is an instrument for determining specific gravities. Invented by the German physicist Philipp von Jolly in 1864, [1] it consists of a spring fastened at the top to a movable arm. At the lower end, the spring is provided with two small pans, one suspended beneath the other.
Statue of Lady Justice blindfolded and holding a balance and a sword, outside the Court of Final Appeal, Hong Kong. Lady Justice (Latin: Iustitia) is an allegorical personification of the moral force in judicial systems. [1] [2] Her attributes are scales, a sword and sometimes a blindfold. She often appears as a pair with Prudentia.
When using the triple beam balance, it is recommended that one start with the lowest level of precision (e.g 100 gram increments). For example, if an object weighs 327 grams, the 100 gram pointer will drop below the fixed mark on the 4th notch (400g); it will then need to be moved back to the third notch (300g).
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Woman Holding a Balance (Dutch: Vrouw met weegschaal), also called Woman Testing a Balance, is an oil painting by Dutch Golden Age painter Johannes Vermeer, now in the National Gallery of Art in Washington, DC.
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