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{{wiktionary|zetta}} |
{{wiktionary|zetta}} |
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'''Zetta-''' (symbol '''Z''') is a [[SI prefix|prefix]] in the [[metric system]] denoting a factor of 10<sup>21</sup> or {{gaps|1|000|000|000|000|000|000|000}}. |
'''Zetta-''' (symbol '''Z''') is a [[SI prefix|prefix]] in the [[metric system]] denoting a factor of 10<sup>21</sup> or {{gaps|1|000|000|000|000|000|000|000}}. |
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i like dogs dogs are cool i got two |
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Added to the SI in 1991, it is derived from the [[French language|French]] prefix ''septo'', meaning ''seven'', because it is equal to 1000<sup>7</sup>.<ref>{{cite web|url=http://www.bipm.org/en/CGPM/db/19/4/|title=Resolution 4 of the 19th CGPM (Conférence Générale des Poids et Mesures)|publisher=BIPM (Bureau International des Poids et Mesures) |
Added to the SI in 1991, it is derived from the [[French language|French]] prefix ''septo'', meaning ''seven'', because it is equal to 1000<sup>7</sup>.<ref>{{cite web|url=http://www.bipm.org/en/CGPM/db/19/4/|title=Resolution 4 of the 19th CGPM (Conférence Générale des Poids et Mesures)|publisher=BIPM (Bureau International des Poids et Mesures) |
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|accessdate=2009-05-16|quote=The names zepto and zetta are derived from septo suggesting the number seven (the seventh power of 10{{sup|3}}) and the letter "z" is substituted for the letter "s" to avoid the duplicate use of the letter "s" as a symbol. |
|accessdate=2009-05-16|quote=The names zepto and zetta are derived from septo suggesting the number seven (the seventh power of 10{{sup|3}}) and the letter "z" is substituted for the letter "s" to avoid the duplicate use of the letter "s" as a symbol. |
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Revision as of 19:05, 9 February 2010
Look up zetta in Wiktionary, the free dictionary.
Zetta- (symbol Z) is a prefix in the metric system denoting a factor of 1021 or 1000000000000000000000. i like dogs dogs are cool i got two Added to the SI in 1991, it is derived from the French prefix septo, meaning seven, because it is equal to 10007.[1]
A prefix of the same value, hepta, was informally introduced a few years before the promulgation of zetta. It was formed from the Greek ἑπτά, (hepta), also meaning seven. Hepta never received official sanction and is now obsolete.
| Prefix | Base 10 | Decimal | Adoption [nb 1] | |
|---|---|---|---|---|
| Name | Symbol | |||
| quetta | Q | 1030 | 1000000000000000000000000000000 | 2022[2] |
| ronna | R | 1027 | 1000000000000000000000000000 | |
| yotta | Y | 1024 | 1000000000000000000000000 | 1991 |
| zetta | Z | 1021 | 1000000000000000000000 | |
| exa | E | 1018 | 1000000000000000000 | 1975[3] |
| peta | P | 1015 | 1000000000000000 | |
| tera | T | 1012 | 1000000000000 | 1960 |
| giga | G | 109 | 1000000000 | |
| mega | M | 106 | 1000000 | 1873 |
| kilo | k | 103 | 1000 | 1795 |
| hecto | h | 102 | 100 | |
| deca | da | 101 | 10 | |
| — | — | 100 | 1 | — |
| deci | d | 10−1 | 0.1 | 1795 |
| centi | c | 10−2 | 0.01 | |
| milli | m | 10−3 | 0.001 | |
| micro | μ | 10−6 | 0.000001 | 1873 |
| nano | n | 10−9 | 0.000000001 | 1960 |
| pico | p | 10−12 | 0.000000000001 | |
| femto | f | 10−15 | 0.000000000000001 | 1964 |
| atto | a | 10−18 | 0.000000000000000001 | |
| zepto | z | 10−21 | 0.000000000000000000001 | 1991 |
| yocto | y | 10−24 | 0.000000000000000000000001 | |
| ronto | r | 10−27 | 0.000000000000000000000000001 | 2022[2] |
| quecto | q | 10−30 | 0.000000000000000000000000000001 | |
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Footnotes
- ^ "Resolution 4 of the 19th CGPM (Conférence Générale des Poids et Mesures)". BIPM (Bureau International des Poids et Mesures). Retrieved 2009-05-16.
The names zepto and zetta are derived from septo suggesting the number seven (the seventh power of 103) and the letter "z" is substituted for the letter "s" to avoid the duplicate use of the letter "s" as a symbol.
- ^ a b "On the extension of the range of SI prefixes". 18 November 2022. Retrieved 5 February 2023.
- ^ "Metric (SI) Prefixes". NIST.