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The micrometre (Commonwealth English as used by the International Bureau of Weights and Measures; [1] SI symbol: μm) or micrometer (American English), also commonly known by the non-SI term micron, [2] is a unit of length in the International System of Units (SI) equalling 1 × 10 −6 metre (SI standard prefix "micro-" = 10 −6); that is, one millionth of a metre (or one thousandth of a ...
40 meters – average depth beneath the seabed of the Channel tunnel; 49 meters – wavelength of the broadcast radio shortwave band at 6.1 MHz; 50 meters – length of a road train; 50 meters – height of the Arc de Triomphe; 55 meters – height of the Leaning Tower of Pisa; 62 meters – wingspan of Concorde; 62.5 meters – height of ...
In everyday conversation, and in informal literature, it is common to see lengths measured in units of objects of which everyone knows the approximate width. Common examples are: Double-decker bus (9.5–11 meters in length) American football field (100 yards in length) Thickness of a human hair (around 80 micrometers)
Modern micrometer with a reading of 1.639 ± 0.005 mm. Assuming no zero error, this is also the measurement. (One may need to enlarge the image to read it.) Outside, inside, and depth micrometers. The outside micrometer has a unit conversion chart between fractional and decimal inch measurements etched onto the frame
This contributes to about 1 m of micrometeoritic content to the depth of the Martian regolith every billion years. Measurements from the Viking program indicate that the Martian regolith is composed of 60% basaltic rock and 40% rock of meteoritic origin.
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A cleaning company has been fined $171,000 after federal investigators found 11 children working a "dangerous" overnight shift at a meat processing plant in Iowa.
Volume of an Olympic size swimming pool of minimal depth (50 m × 25 m × 2 m). 3.054 × 10 3: Volume of each of the nine spheres of the Atomium in Brussels 1.13 × 10 4: Gas volume in the first zeppelin LZ 1: 1.1866 × 10 4: Amount of concrete in Trbovlje Chimney: 1.56 × 10 4: Quebec's 2001 output of maple syrup: 5.0 × 10 4: Typical volume ...