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  2. Phase-out of incandescent light bulbs - Wikipedia

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

    According to this source, 1 November 2011 to 30 September 2012 will be a transitional period and as of 1 October 2012, imports and sales of ordinary incandescent bulbs of 100 watts or more will be prohibited. The first phase will be followed by a ban on 60-watt-and-higher incandescent light bulbs starting in October 2014.

  3. Carbon dioxide - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide

    The critical point is 304.128(15) K (30.978(15) °C) at 7.3773(30) MPa (72.808(30) atm). Another form of solid carbon dioxide observed at high pressure is an amorphous glass-like solid. This form of glass, called carbonia, is produced by supercooling heated CO 2 at extreme pressures (40–48 GPa, or about 400,000 atmospheres) in a diamond anvil.

  4. Satellite - Wikipedia

    en.wikipedia.org/wiki/Satellite

    A satellite or artificial satellite [a] is an object, typically a spacecraft, placed into orbit around a celestial body. Satellites have a variety of uses, including communication relay, weather forecasting, navigation ( GPS ), broadcasting, scientific research, and Earth observation. Additional military uses are reconnaissance, early warning ...

  5. Charlemagne - Wikipedia

    en.wikipedia.org/wiki/Charlemagne

    Charles is the modern English form of these names. The name Charlemagne, as the emperor is normally known in English, comes from the French Charles-le-magne ("Charles the Great"). In modern German, he is known as Karl der Große. The Latin epithet magnus ("great") may have been associated with him during his lifetime, but this is not certain.

  6. Sulfuric acid - Wikipedia

    en.wikipedia.org/wiki/Sulfuric_acid

    Infobox references. Sulfuric acid ( American spelling and the preferred IUPAC name) or sulphuric acid ( Commonwealth spelling ), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, and hydrogen, with the molecular formula H2SO4. It is a colorless, odorless, and viscous liquid that is miscible with water.

  7. Smallpox vaccine - Wikipedia

    en.wikipedia.org/wiki/Smallpox_vaccine

    The smallpox vaccine is the first vaccine to have been developed against a contagious disease. In 1796, British physician Edward Jenner demonstrated that an infection with the relatively mild cowpox virus conferred immunity against the deadly smallpox virus. Cowpox served as a natural vaccine until the modern smallpox vaccine emerged in the ...