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  2. List of smoking bans - Wikipedia

    en.wikipedia.org/wiki/List_of_smoking_bans

    On 30 July 2012, Interior Minister Prince Ahmed bin Abdulaziz ordered the implementation of a royal ban on smoking in all government facilities (ministries, buildings, institutions, offices etc.) and most indoor public places. The ban also prohibits smoking of hookahs in public places, and prohibits selling tobacco to anyone under 18.

  3. 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.

  4. Thermal expansion - Wikipedia

    en.wikipedia.org/wiki/Thermal_expansion

    Thermal expansion is the tendency of matter to change its shape, area, volume, and density in response to a change in temperature, usually not including phase transitions. [1] Temperature is a monotonic function of the average molecular kinetic energy of a substance.

  5. Gamma-ray burst - Wikipedia

    en.wikipedia.org/wiki/Gamma-ray_burst

    These account for about 30% of gamma-ray bursts, but until 2005, no afterglow had been successfully detected from any short event and little was known about their origins. Since then, several dozen short gamma-ray burst afterglows have been detected and localized, several of which are associated with regions of little or no star formation, such ...

  6. Radiation - Wikipedia

    en.wikipedia.org/wiki/Radiation

    In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. [1] [2] This includes: electromagnetic radiation consists of photons, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation (γ) particle radiation consists of ...

  7. 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, but escalated into a significant public debate in 1989 when three girls were suspended from school for refusing to remove their headscarves.

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