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  2. Orders of magnitude (time) - Wikipedia

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

    More exactly, the mean solar day is 86.400 002 ks due to tidal braking, and increasing at the rate of approximately 2 ms/century; to correct for this time standards like UTC use leap seconds with the interval described as "a day" on them being most often 86.4 ks exactly by definition but occasionally one second more or less so that every day ...

  3. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    100 d (1 hd) 100 days, roughly equivalent to 1/4 of a year (91.25 days). In Chinese tradition "bǎi rì" is the hundredth day after one's birth, also called Baby's 100 Days Celebration. semester: 18 weeks: A division of the academic year. [6] Literally "six months", also used in this sense. lunar year: 354.37 d: year: 12 mo: 365 or 366 d ...

  4. Wikipedia : Public domain image resources

    en.wikipedia.org/wiki/Wikipedia:Public_domain...

    Bing.com – Has an Advanced Image Search that offers images in different resolutions and also categorizes images. Allows free querying of the bing Image Search API up to a certain limit per day. Everystockphoto.com – Searching over 4.3 million public domain and creative commons photos including Wikipedia and NASA. Free user accounts with ...

  5. Hexadecimal time - Wikipedia

    en.wikipedia.org/wiki/Hexadecimal_time

    Hexadecimal time is the representation of the time of day as a hexadecimal number in the interval [0, 1). The day is divided into 10 16 (16 10 ) hexadecimal hours, each hour into 100 16 (256 10 ) hexadecimal minutes, and each minute into 10 16 (16 10 ) hexadecimal seconds.

  6. Microsecond - Wikipedia

    en.wikipedia.org/wiki/Microsecond

    A microsecond is to one second, as one second is to approximately 11.57 days. A microsecond is equal to 1000 nanoseconds or 1 ⁄ 1,000 of a millisecond. Because the next SI prefix is 1000 times larger, measurements of 10 −5 and 10 −4 seconds are typically expressed as tens or hundreds of microseconds.

  7. Millisecond - Wikipedia

    en.wikipedia.org/wiki/Millisecond

    A millisecond (from milli-and second; symbol: ms) is a unit of time in the International System of Units equal to one thousandth (0.001 or 10 −3 or 1 / 1000) of a second [1] [2] or 1000 microseconds.

  8. Frame rate - Wikipedia

    en.wikipedia.org/wiki/Frame_rate

    The 720p format produces 59.94/50 or 29.97/25 1280×720p images, not squeezed, so that no expansion or squeezing of the image is necessary. This confusion was industry-wide in the early days of digital video software, with much software being written incorrectly, the developers believing that only 29.97 images were expected each second, which ...

  9. International Atomic Time - Wikipedia

    en.wikipedia.org/wiki/International_Atomic_Time

    It is the basis for Coordinated Universal Time (UTC), which is used for civil timekeeping all over the Earth's surface and which has leap seconds. UTC deviates from TAI by a number of whole seconds. As of 1 January 2017, immediately after the most recent leap second was put into effect, [4] UTC has been exactly 37 seconds behind TAI. The 37 ...