hydrometer: Quick Facts

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Photos

Glass hydrometer with a weighted bulb and a long, narrow stem marked with measurement graduations, placed on a textured brown surface.

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Topics

Baumé hydrometer storage-battery hydrometer radiator hydrometer liquid machine measurement viscometer pH meter flow meter salinometer Dividing engine radiation measurement particle accelerator psychological testing measurement system productivity

Key People

Nicholson, William

William Nicholson

English chemist and inventor