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  2. Richard G. Hatcher - Wikipedia

    en.wikipedia.org/wiki/Richard_G._Hatcher

    Richard G. Hatcher. Richard Gordon Hatcher (July 10, 1933 – December 13, 2019) was an American attorney and politician who served as the first African-American mayor of Gary, Indiana, for 20 years, from 1968 to 1988. At the time of his first election on November 7, 1967, he and Carl Stokes were the first African Americans to be elected mayors ...

  3. Boeing 787 Dreamliner - Wikipedia

    en.wikipedia.org/wiki/Boeing_787_Dreamliner

    The Boeing 787 Dreamliner is an American wide-body airliner developed and manufactured by Boeing Commercial Airplanes . After dropping its unconventional Sonic Cruiser project, Boeing announced the conventional 7E7 on January 29, 2003, which focused largely on efficiency. The program was launched on April 26, 2004, with an order for 50 aircraft ...

  4. Ten-code - Wikipedia

    en.wikipedia.org/wiki/Ten-code

    California Penal Code sections were in use by the Los Angeles Police Department as early as the 1940s, and these Hundred Code numbers are still used today instead of the corresponding ten-code. Generally these are given as two sets of numbers [ citation needed ] —"One Eighty-Seven" or "Fifty-One Fifty"—with a few exceptions such as "459 ...

  5. Carrier generation and recombination - Wikipedia

    en.wikipedia.org/wiki/Carrier_generation_and...

    In solid-state physics of semiconductors, carrier generation and carrier recombination are processes by which mobile charge carriers ( electrons and electron holes) are created and eliminated. Carrier generation and recombination processes are fundamental to the operation of many optoelectronic semiconductor devices, such as photodiodes, light ...

  6. Prefix code - Wikipedia

    en.wikipedia.org/wiki/Prefix_code

    Prefix code. A prefix code is a type of code system distinguished by its possession of the "prefix property", which requires that there is no whole code word in the system that is a prefix (initial segment) of any other code word in the system. It is trivially true for fixed-length code, so only a point of consideration in variable-length code .

  7. List of religious populations - Wikipedia

    en.wikipedia.org/wiki/List_of_religious_populations

    The list of religious populations article provides a comprehensive overview of the distribution and size of religious groups around the world. This article aims to present statistical information on the number of adherents to various religions, including major faiths such as Christianity, Islam, Hinduism, Buddhism, and others, as well as smaller religious communities.

  8. Raccoon - Wikipedia

    en.wikipedia.org/wiki/Raccoon

    The raccoon ( / rəˈkuːn / or US: / ræˈkuːn / ⓘ, Procyon lotor ), also spelled racoon [3] and sometimes called the common raccoon or northern raccoon to distinguish it from the other species, is a mammal native to North America. It is the largest of the procyonid family, having a body length of 40 to 70 cm (16 to 28 in), and a body ...

  9. 100% renewable energy - Wikipedia

    en.wikipedia.org/wiki/100%_renewable_energy

    100% renewable energy is an energy system where all energy use is sourced from renewable energy sources. The endeavor to use 100% renewable energy for electricity, heating/cooling and transport is motivated by global warming, pollution and other environmental issues, as well as economic and energy security concerns.