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  2. List of radioactive nuclides by half-life - Wikipedia

    en.wikipedia.org/wiki/List_of_radioactive...

    This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds. [1]

  3. Orders of magnitude (time) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(time)

    While this is strictly 24 hours and 1 second in conventional units, a digital clock of suitable capability level will most often display the leap second as 23:59:60 and not 24:00:00 before rolling over to 00:00:00 the next day, as though the last "minute" of the day were crammed with 61 seconds and not 60, and similarly the last "hour" 3601 s ...

  4. Sidereal time - Wikipedia

    en.wikipedia.org/wiki/Sidereal_time

    (Seconds are defined as per International System of Units and are not to be confused with ephemeris seconds.) Each day, the sidereal time at any given place and time will be about four minutes shorter than local civil time (which is based on solar time), so that for a complete year the number of sidereal "days" is one more than the number of ...

  5. Second - Wikipedia

    en.wikipedia.org/wiki/Second

    The second (symbol: s) is a unit of time, historically defined as 1 ⁄ 86400 of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each (24 × 60 × 60 = 86400).

  6. Minute and second of arc - Wikipedia

    en.wikipedia.org/wiki/Minute_and_second_of_arc

    The Earth's rotational rate around its own axis is 15 minutes of arc per minute of time (360 degrees / 24 hours in day); the Earth's rotational rate around the Sun (not entirely constant) is roughly 24 minutes of time per minute of arc (from 24 hours in day), which tracks the annual progression of the Zodiac.

  7. Casio AE-1000W - Wikipedia

    en.wikipedia.org/wiki/Casio_AE-1000W

    The AE-1000W has a 1/100 stopwatch which can count up to 24 hours (23:59'59.99") and has an elapsed time, split time and final time recording. The watch has an hourly chime mode and five daily alarms (also written on the face of the watch) for recurring events along with a one-time alarm which can be switched off using any button.

  8. Wikipedia:Statistics - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Statistics

    A real-time view of current edit rates on various major language Wikipedias using node.js. The app connects to Wikimedia IRC chatrooms where page edits are announced by a bot, and keeps track of the edits. wlm-stats (historical) GLAM GitHub: Statistics and graphs about the Wiki Loves Monuments photograph contest. Historical information captured ...

  9. 0 to 60 mph - Wikipedia

    en.wikipedia.org/wiki/0_to_60_mph

    The time it takes a vehicle to accelerate from 0 to 60 miles per hour (97 km/h or 27 m/s), often said as just "zero to sixty" or "nought to sixty", is a commonly used performance measure for automotive acceleration in the United States and the United Kingdom. In the rest of the world, 0 to 100 km/h (0 to 62.1 mph) is used.