spirit level
spirit level
English Definitions:
level, spirit level (noun)
indicator that establishes the horizontal when a bubble is centered in a tube of liquid
spirit level (Noun)
A tool employing a chamber with a colored liquid (usually alcohol, hence spirit) and an air bubble, used to determine a horizontal or vertical reference line.
Spirit level
A spirit level or bubble level is an instrument designed to indicate whether a surface is horizontal or vertical. Different types of spirit levels may be used by carpenters, stonemasons, bricklayers, other building trades workers, surveyors, millwrights and other metalworkers, and in some photographic or videographic work. Early spirit levels had two banana-shaped curved glass vials at each viewing point and were more complicated to use. In the 1920s Henry Ziemann, the founder of Empire Level Mfg. Corp., invented the modern level with a single vial. These vials, common on most ordinary levels today, have a slightly curved glass tube which is incompletely filled with a liquid, usually a colored spirit or alcohol, leaving a bubble in the tube. At slight inclinations the bubble travels away from the center position, which is usually marked. Alcohols such as ethanol are often used rather than water. Alcohols have low viscosity and surface tension, which allows the bubble to travel the tube quickly and settle accurately with minimal interference with the glass surface. Alcohols also have a much wider liquid temperature range, and won't break the vial as water could due to ice expansion. A colorant such as fluorescein, typically yellow or green, may be added to increase the visibility of the bubble.
Spirit level
A spirit level, bubble level, or simply a level, is an instrument designed to indicate whether a surface is horizontal (level) or vertical (plumb). Different types of spirit levels may be used by carpenters, stonemasons, bricklayers, other building trades workers, surveyors, millwrights and other metalworkers, and in some photographic or videographic work.
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"spirit level." Kamus.net. STANDS4 LLC, 2024. Web. 2 May 2024. <https://www.kamus.net/english/spirit+level>.
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