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Average thickness of Milky Way Galaxy [43] (1,000 to 3,000 ly by 21 cm observations [44]) 10 20: 100 Em: 113.5 Em Thickness of Milky Way Galaxy's gaseous disk [45] 10 21: 1 zettameter (Zm) 1.54 Zm Distance to SN 1987A, the most recent naked eye supernova 1.62 Zm Distance to the Large Magellanic Cloud (a dwarf galaxy orbiting the Milky Way) 1.66 Zm
Milli (symbol m) is a unit prefix in the metric system denoting a factor of one thousandth (10 −3). [1] Proposed in 1793, [ 2 ] and adopted in 1795, the prefix comes from the Latin mille , meaning one thousand (the Latin plural is milia ).
1 km 2 means one square kilometre, or the area of a square of 1000 m by 1000 m. In other words, an area of 1 000 000 square metres and not 1000 square metres. 2 Mm 3 means two cubic megametres, or the volume of two cubes of 1 000 000 m by 1 000 000 m by 1 000 000 m, i.e. 2 × 10 18 m 3, and not 2 000 000 cubic metres (2 × 10 6 m 3).
The informal term "metric mile" is used in some countries, in sports such as track and field athletics and speed skating, to denote a distance of 1,500 metres (0.932 miles). The 1500 meters is the premier middle distance running event in Olympic sports. In United States high-school competition, the term is sometimes used for a race of 1,600 ...
The basic unit of length in the imperial and U.S. customary systems is the yard, defined as exactly 0.9144 m by international treaty in 1959. [2] [5] Common imperial units and U.S. customary units of length include: [6] thou or mil (1 ⁄ 1000 of an inch) inch (25.4 mm) foot (12 inches, 0.3048 m) yard (3 feet, 0.9144 m)
Metric mile, an informal term for 1500 or 1600 m; Nautical mile (M, NM, nmi) Scandinavian mile (mil) Scots mile; US survey mile; Historical foreign units translated as "mile": Arabic mile (الميل, al-mīl) Austrian mile (Meile) Chinese mile (里, li) Croatian mile (milja) Danish mile (mil) German mile (Meile) Greek & Byzantine mile ...
The post 35 Text Abbreviations You Should Know (and How to Use Them) appeared first on Reader's Digest. Knowing the meaning of these terms will keep anyone with a phone, social media, or even just ...
A metric prefix myria (abbreviation "my"), for 10,000, was deprecated in 1960. Before the adoption of ronna and quetta for 10 27 and 10 30 and ronto and quecto for 10 −27 and 10 −30 in November 2022, many personal, and sometimes facetious, proposals for additional metric prefixes were formulated.