the term time scale has both a strictly quantitative and a rather qualitative meaning.
Table of contents
5 Wikipedia on the left of to
the group of topics calendar and time 6 Web on the left of [ work on] quantitative accurate time scale within the range of the natural sciences and the technology, to which measured or computed times referredwill can. Such scales form an exact yardstick of time measurement and have
- as basis a physical model, which must be realized for technical application sufficient exactly (z. B. by Zeitsignale or atomic clocks), and an exactly specified zero point.
- The most important time scale is that one the world time (UT1, UTC), which is connected with the earth rotation over the sidereal time. Their unit is the atomic-physically defined SI second and the annual course movement of the earth.
- The contrast to a time scale of thisstrict sense is relative time measurement - z. B. with a stop watch - where the zero point can be arbitrary because of the bare measurement of a time difference. In the everyday life this meaning of „time is frequent and can the respective purpose good “are adapted.
qualitative time scales
are to be preferred however if the exact „yardstick is less important “than the sequence of the regarded phenomena. Such time scales would list events or sections, which took place at a certain time, in their orderup, the exact length of time between them is however less important than the mutual allocation of different event rows.
„Time “is understood as a kind distance between two or more events , the time scale is a systematic consequence of these events here andsecures its connection. Depending upon purpose of a time scale, it avails itself of an appropriate time interval between the events, in order to illustrate these. Like that for example a representation of earth ages would not be helpful in the unit second the purpose of the illustration.
time scales into the Wikipedia
thousands of years
to thousands of years exists into the Wikipedia a series of articles of 10. Millenium v. Chr. up to the 3. Millenium.
|10.||9.||8.||7.||6.||5.||4.||3.||2.||1.||< v. Chr. Thousands of years >||1. (1-1000)||2. (1001-2000)||3. (2001-3000)|
to the centuries exists into the Wikipedia a series of articles of 40. Century v. Chr. up to 21. Century.
excerpt, which complete table see, could be changed however at any time: Decades
a series of articles
yearly calendar [ work on ] historical anniversaries to the historical
1040-49 1050-59 1060-69 1070-79 1080-89 in the Wikipediaa series of articles
- historical anniversaries - arranged after days
Wikipedia on the left of to the group of topics calendar and time
|Article for the chronology of mankind:|
|linear units of the time calculation||cyclic units of the time calculation|
|millenium||century||decade||year (calendar)||month||week||day (Calendars)|
|starting from 10. Millenium v. Chr.||starting from 40. Century v. Chr.||starting from 390er v. Chr.||starting from 400 v. Chr.||1. January to 31. December|
|further articles about time:|
|An overview of entire geologic history offers those Geological time scale.|
|From the Big Bang to the emergence of the earth see early history of the universe.|
|For the units of time measurement see: Second, minute, hour.|
See also: Assistance: Time borders
Web on the left of
- http://www.wikitimescale.com, WikiTimeScale is a Wikiin the diagram of historical events specialized.