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Early symptoms of cataract may be improved by wearing appropriate glasses; if this does not help, cataract surgery is the only effective treatment. [4] Surgery with implants generally results in better vision and an improved quality of life : however, the procedure is not readily available in many countries.
Prism (Katy Perry album) Prism is the fourth studio album by American singer Katy Perry. It was released by Capitol Records on October 18, 2013. While the album was initially planned to be "darker" than her previous material, Prism ultimately became a prominently dance-inspired record.
The John Birch Society (JBS) is an American right-wing political advocacy group. [1] Founded in 1958, it is anti-communist, [2] [3] supports social conservatism, [2] [3] and is associated with ultraconservative, radical right, far-right, right-wing populist, and right-wing libertarian ideas. [12]
Permanent link; Page information ... the incident ray when sunlight was filtered through a violet glass in certain ... of the colour produced from sunlight through prism.
Permanent link; Page information; ... Newton was the first to show a diagram using a prism as a beam ... thought that the object-glasses of telescopes must forever ...
Johann Wolfgang von Goethe. Johann Wolfgang von Goethe[a] (28 August 1749 – 22 March 1832) was a German polymath, who is widely regarded as the greatest and most influential writer in the German language. His work has had a profound and wide-ranging influence on Western literary, political, and philosophical thought from the late 18th century ...
A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly [ 1 ] but instead use a backlight or reflector to produce images in color or monochrome.
Ludwig van Beethoven[n 1] (baptised 17 December 1770 – 26 March 1827) was a German composer and pianist. He is one of the most revered figures in the history of Western music; his works rank among the most performed of the classical music repertoire and span the transition from the Classical period to the Romantic era in classical music.