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  2. History of YouTube - Wikipedia

    en.wikipedia.org/wiki/History_of_YouTube

    As of February 2017, there were more than 400 hours of content uploaded to YouTube each minute, and one billion hours of content being watched on YouTube every day. As of October 2020 [update] , YouTube is the second-most popular website in the world, behind Google , according to Alexa Internet . [ 1 ]

  3. History of the metric system - Wikipedia

    en.wikipedia.org/wiki/History_of_the_metric_system

    Units in everyday use by country as of 2019 The history of the metric system began during the Age of Enlightenment with measures of length and weight derived from nature, along with their decimal multiples and fractions. The system became the standard of France and Europe within half a century. Other measures with unity ratios [Note 1] were added, and the system went on to be adopted across ...

  4. Kilometre - Wikipedia

    en.wikipedia.org/wiki/Kilometre

    The kilometre (SI symbol: km; / ˈ k ɪ l ə m iː t ər / or / k ɪ ˈ l ɒ m ə t ər /), spelt kilometer in American and Philippine English, is a unit of length in the International System of Units (SI), equal to one thousand metres (kilo-being the SI prefix for 1000).

  5. Timeline of online video - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_online_video

    YouTube opens for video uploads, and the first YouTube video uploaded on April 23, 2005, is titled Me at the zoo. [20] Between March and July 2006, YouTube grows from 30 to 100 million views of videos per day. 2006 May 14 Companies

  6. History of longitude - Wikipedia

    en.wikipedia.org/wiki/History_of_longitude

    Littlehales noted in 1909: "The lunar-distance tables were omitted from the Connaissance des Temps for the year 1905, after having retained their place in the French official ephemeris for 131 years; and from the British Nautical Almanac for 1907, after having been presented annually since the year 1767, when Maskelyne's tables were published."

  7. History of measurement - Wikipedia

    en.wikipedia.org/wiki/History_of_measurement

    Today only the stone continues in customary use for measuring personal body weight. The present stone is 14 pounds (~6.35 kg), but an earlier unit appears to have been 16 pounds (~7.25 kg). The other units were multiples of 2, 8, and 160 times the stone, or 28, 112, and 2240 pounds (~12.7 kg, 50.8 kg, 1016 kg), respectively.

  8. History of the metre - Wikipedia

    en.wikipedia.org/wiki/History_of_the_metre

    An early definition of the metre was one ten-millionth of the Earth quadrant, the distance from the North Pole to the Equator, measured along a meridian through Paris.. The history of the metre starts with the Scientific Revolution that is considered to have begun with Nicolaus Copernicus's publication of De revolutionibus orbium coelestium in 1543.

  9. Jawed Karim - Wikipedia

    en.wikipedia.org/wiki/Jawed_Karim

    Jawed Karim was born on October 28, 1979, in Merseburg, East Germany, to a Bangladeshi father and a German mother. [4] His father Naimul Karim (Bengali: নাইমুল করিম) is a Bangladeshi who is a researcher at 3M, and his mother, Christine, is a German biochemistry scientist at the University of Minnesota. [5]