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  2. 10,000 Hours - Wikipedia

    en.wikipedia.org/wiki/10,000_Hours

    10,000 Hours. " 10,000 Hours " is a song by American country music duo Dan + Shay and Canadian singer Justin Bieber. It was released on October 4, 2019, as the lead single from Dan + Shay's fourth studio album, Good Things (2021).

  3. Outliers (book) - Wikipedia

    en.wikipedia.org/wiki/Outliers_(book)

    It was the making of them.'" [4] Gates met the 10,000-Hour Rule when he gained access to a high school computer in 1968 at the age of 13, and spent 10,000 hours programming on it. [4] In Outliers, Gladwell interviews Gates, who says that unique access to a computer as early as 1968 when they were not commonplace helped him succeed.

  4. Clock of the Long Now - Wikipedia

    en.wikipedia.org/wiki/Clock_of_the_Long_Now

    Clock of the Long Now. The Clock of the Long Now, also called the 10,000-year clock, is a mechanical clock under construction that is designed to keep time for 10,000 years. It is being built by the Long Now Foundation. A two-meter prototype is on display at the Science Museum in London.

  5. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    The TU (for time unit) is a unit of time defined as 1024 μs for use in engineering. The Svedberg is a time unit used for sedimentation rates (usually of proteins). It is defined as 10 −13 seconds (100 fs). The galactic year, based on the rotation of the galaxy and usually measured in million years.

  6. Speed of light - Wikipedia

    en.wikipedia.org/wiki/Speed_of_Light

    Special relativity. The speed of light in vacuum, commonly denoted c, is a universal physical constant that is exactly equal to 299,792,458 metres per second (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour).

  7. Orders of magnitude (time) - Wikipedia

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

    5.4 × 10 83 Qs (1.7 × 10 106 years): The approximate lifespan of a supermassive black hole with a mass of 20 trillion solar masses [21] 10 10 10 76.66 {\displaystyle 10^{10^{10^{76.66}}}} Qs: The scale of an estimated Poincaré recurrence time for the quantum state of a hypothetical box containing an isolated black hole of stellar mass [ 22 ...

  8. 10,000 Hours (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/10,000_Hours_(disambiguation)

    10,000 Hours" is a 2019 song by Dan + Shay and Justin Bieber. "10,000 Hours" may also refer to: Music "Ten Thousand Hours", a 2012 song by Macklemore & Ryan Lewis ...

  9. Kilowatt-hour - Wikipedia

    en.wikipedia.org/wiki/Kilowatt-hour

    The kilowatt-hour is a composite unit of energy equal to one kilowatt (kW) sustained for (multiplied by) one hour. The International System of Units (SI) unit of energy meanwhile is the joule (symbol J). Because a watt is by definition one joule per second, and because there are 3,600 seconds in an hour, one kWh equals 3,600 kilojoules or 3.6 MJ.