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milli m 10 −3: 0.001 micro μ 10 −6: 0.000 001: nano n ... square metre: square meter cm2: cm 2: ... → 50–57 inches ...
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 ...
milli m 0.001 10 −3: micro μ 0.000 001: 10 −6: nano n ... the square metre is the derived unit for area, ... they had diverged by 50 μg since fabrication, ...
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 Pyramid of Djoser; 64 meters – wingspan of a Boeing 747-400
The prefix milli-, likewise, may be added to metre to indicate division by one thousand; one millimetre is equal to one thousandth of a metre. Decimal multiplicative prefixes have been a feature of all forms of the metric system, with six of these dating back to the system's introduction in the 1790s. Metric prefixes have also been used with ...
For a number written in scientific notation, this logarithmic rounding scale requires rounding up to the next power of ten when the multiplier is greater than the square root of ten (about 3.162). For example, the nearest order of magnitude for 1.7 × 10 8 is 8, whereas the nearest order of magnitude for 3.7 × 10 8 is 9.
Micro (Greek letter μ, mu, non-italic) is a unit prefix in the metric system denoting a factor of 10 −6 (one millionth). [1] It comes from the Greek word μικρός (mikrós), meaning "small". [2] It is the only SI prefix which uses a character not from the Latin alphabet.
micro-(μW) 1 × 10 −6: −30 dBm tech: approximate consumption of a quartz or mechanical wristwatch: 3 × 10 −6: −25 dBm astro: cosmic microwave background radiation per square meter 10 −5: 5 × 10 −5: −13 dBm biomed: sound power incident on a human eardrum at the threshold intensity for pain (500 mW/m 2). 10 −3: milli-(mW) 1.55 ...