2015 will be the international year of light
2014 is coming to an end and the attention is already focused on 2015. One of the aspects you must select the next year's agenda will be the light, since 2015 was declared the "international year of light" by the United Nations General Assembly, to celebrate the light as a matter of science and technological development.The international year of light is a global initiative that aims to raise awareness of citizens around the world to the importance of light and optical technologies in society. To celebrate the light in its most varied forms, are already being prepared various activities aimed at audiences of all ages and different cultural levels.With the advent of electricity in the 20th century, many people have forgotten the luxury that is you can access daily to this energy form. At the same time, in developing countries, there are millions of people who do not have access to electricity and is also the problem that the u.n. intends to emphasize with this international year of light.The international year of light coincides with several milestones in the field of the physical study of light, as the work in optics of Ibn Al-Haytham, in 1015; the wave behavior of light proposed by Fresnel in 1815; the electromagnetic theory of light proposed by Maxwell in 1865; Einstein's work on the photoelectric effect (1905) and on the link between light and Cosmology in the context of general relativity (1915); the discovery of the cosmic microwave background radiation by Penzias and Wilson, in 1965, and the work of Charles Kao (1965) regarding the use of fiber optics in telecommunications.Foto: Mystic Prism Studio/Creative Commons
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