Jump to content

Yotta-

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by Staglit (talk | contribs) at 22:03, 11 July 2014 (Undid revision 616581284 by Lior15234 (talk) Vandalism). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Yotta is the largest unit prefix in the International System of Units (SI), denoting a factor of 1024 or 1000000000000000000000000. It has the unit symbol Y. The prefix name is derived from the Greek οκτώ (októ), meaning eight, because it is equal to 10008. It was added to the SI in 1991.[1]

Usage examples:

  • The mass of the Earth is 5972.6 Yg.[2][3]
  • The mass of the oceans is about 1.4 Yg.[4]
  • The total power output of the Sun is approximately 385 YW.[5]
  • The observable universe is estimated to be 880 Ym in diameter.[6]
  • A 200 ml glass of water contains 6.66 Y water molecules.
  • One yottabyte is a unit of information or computer storage that is approximately 1.2 septillion bytes. [7]
Prefix Base 10 Decimal Adoption
[nb 1]
Name Symbol
quetta Q 1030 1000000000000000000000000000000 2022[8]
ronna R 1027 1000000000000000000000000000
yotta Y 1024 1000000000000000000000000 1991
zetta Z 1021 1000000000000000000000
exa E 1018 1000000000000000000 1975[9]
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[8]
quecto q 10−30 0.000000000000000000000000000001
Notes
  1. ^ Prefixes adopted before 1960 already existed before SI. The introduction of the CGS system was in 1873.

See also

References

  1. ^ "Resolution 4 of the 19th CGPM (Conférence Générale des Poids et Mesures)". BIPM (Bureau International des Poids et Mesures).
  2. ^ Williams, David R. (2004-09-01). "Earth Fact Sheet". NASA. Retrieved 2007-03-17.
  3. ^ http://hypertextbook.com/facts/2002/SamanthaDong2.shtml
  4. ^ Kennish, Michael J. (2001). Practical handbook of marine science. Marine science series (3rd ed.). CRC Press. p. 35. ISBN 0-8493-2391-6.
  5. ^ http://www.wolframalpha.com/input/?i=+total+power+output+of+the+Sun
  6. ^ http://www.wolframalpha.com/input/?i=size+of+universe By a simple units conversion, 8.8×1023km = 8.8×1026m = 880×1024m = 880 Ym
  7. ^ https://en.wikipedia.org/wiki/JEDEC_memory_standards#Unit_prefixes_for_semiconductor_storage_capacity digital information, in relation to metric format, is expressed in the form of 210n, instead of the standard 103n; making a yottabyte exactly 1,208,925,819,614,629,174,706,176 bytes
  8. ^ a b "On the extension of the range of SI prefixes". 18 November 2022. Retrieved 5 February 2023.
  9. ^ "Metric (SI) Prefixes". NIST.