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  2. Haijin - Wikipedia

    en.wikipedia.org/wiki/Haijin

    Fu Yuanchu's 1639 memorial to the throne made the case that trade between Fujian and Dutch Formosa had made the ban entirely unworkable. [15] The lifting of the sea ban coincided with the arrival of the first Spanish galleons from the Americas, creating a global trade link that would not be interrupted until the following century. [38]

  3. Phase-out of incandescent light bulbs - Wikipedia

    en.wikipedia.org/wiki/Phase-out_of_incandescent...

    Compared to general-service incandescent lamps giving the same amount of visible light, CFLs use one-fifth to one-third the electric power and may last eight to fifteen times longer. [12] Newer phosphor formulations have improved the perceived color, with "soft white" CFLs judged subjectively similar to standard incandescent lamps. [ 13 ]

  4. Islamic scarf controversy in France - Wikipedia

    en.wikipedia.org/wiki/Islamic_scarf_controversy...

    In France, there is an ongoing social, political, and legal debate concerning the wearing of the hijab and other forms of Islamic coverings in public. The cultural framework of the controversy can be traced to France's history of colonization in North Africa, [1] but escalated into a significant public debate in 1989 when three girls were suspended from school for refusing to remove their ...

  5. Deepwater Horizon - Wikipedia

    en.wikipedia.org/wiki/Deepwater_Horizon

    Deepwater Horizon was an ultra-deepwater, dynamically positioned, semi-submersible offshore drilling rig [7] owned by Transocean and operated by the BP company. On April 20, 2010, while drilling in the Gulf of Mexico at the Macondo Prospect, a blowout caused an explosion on the rig that killed 11 crewmen and ignited a fireball visible from 40 miles (64 km) away. [8]

  6. Side project time - Wikipedia

    en.wikipedia.org/wiki/Side_project_time

    Google is credited for popularizing the practice that 20 percent of an employee's time may be used for side projects. [5] At Google, this led to the development of products such as AdSense. [6] [7] While Gmail is frequently described as a 20% project, its creator Paul Buchheit states that it was never one. [8]

  7. Cathode-ray tube - Wikipedia

    en.wikipedia.org/wiki/Cathode-ray_tube

    A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. [2] The images may represent electrical waveforms on an oscilloscope , a frame of video on an analog television set (TV), digital raster graphics on a computer monitor , or ...

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