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  2. Compact fluorescent lamp - Wikipedia

    en.wikipedia.org/wiki/Compact_fluorescent_lamp

    This was the first successful screw-in replacement for an incandescent lamp, using new rare earth aluminum lattice phosphors to solve the problem of lumen depreciation that would normally occur quickly in such a thin tube; however, it was not widely adopted, because of its large size, weight (over half a kilogram), pronounced 50 Hz flicker and ...

  3. Demographics of the United States - Wikipedia

    en.wikipedia.org/wiki/Demographics_of_the_United...

    Percent distribution of the total population by age groups (1900 to 2015). Ages 1900 1910 1920 1930 1940 ... which will be known as the Chart extension, ...

  4. Glock - Wikipedia

    en.wikipedia.org/wiki/Glock

    The Glock 37 first appeared in 2003. It was designed to offer ballistic performance comparable with the .45 ACP in the frame size of the Glock 17. The concern with the size of the Glock 20/21 has been addressed by the Glock 36, 21SF, and 30SF, all of which featured reduced-size frames. The standard magazine capacity of the Glock 37 is 10 rounds.

  5. Construction - Wikipedia

    en.wikipedia.org/wiki/Construction

    This is an accepted version of this page This is the latest accepted revision, reviewed on 24 February 2025. Process of building or assembling a building or infrastructure For other uses, see Construction (disambiguation). "Construction site" redirects here. Not to be confused with Construction Site (TV series). Construction site and equipment prepared for start of work in Cologne, Germany ...

  6. Demographics of China - Wikipedia

    en.wikipedia.org/wiki/Demographics_of_China

    1.3 Population density and distribution. 1.4 Structure of the population. ... 3.7 Height and weight. 3.8 Gender balance. ... which will be known as the Chart ...

  7. Texas - Wikipedia

    en.wikipedia.org/wiki/Texas

    The size and unique history of Texas make its regional affiliation debatable; it can be considered a Southern or a Southwestern state, or both. The vast geographic, economic, and cultural diversity within the state itself prohibits easy categorization of the whole state into a recognized region of the United States .

  8. Mars - Wikipedia

    en.wikipedia.org/wiki/Mars

    Mars is the fourth planet from the Sun.The surface of Mars is orange-red because it is covered in iron(III) oxide dust, giving it the nickname "the Red Planet". [22] [23] Mars is among the brightest objects in Earth's sky, and its high-contrast albedo features have made it a common subject for telescope viewing.

  9. Demographics of Ukraine - Wikipedia

    en.wikipedia.org/wiki/Demographics_of_Ukraine

    Animated population pyramid from 1989 to 2021 Ukrainian population density by raion. According to the United Nations, Ukraine has a population of 37.9 million as of 2024. [5] ...