blind curve
51Corrective lens — A bifocal corrective eyeglass lens A pair of contact le …
52Ultraviolet — UV redirects here. For other uses, see UV (disambiguation). UVB redirects here. For the mysterious shortwave radio station in Russia, see UVB 76. For other uses, see Ultraviolet (disambiguation). False color image of the Sun s corona as seen in… …
53Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after …
54Melatonin — Not to be confused with Melanin or Melanotan. Melatonin Systematic (IUPAC) name …
55Timeline of Islamic science and engineering — This timeline of Islamic science and engineering covers the general development of science and technology in the Islamic world during the Islamic Golden Age, usually dated from the 7th to 16th centuries.From the 17th century onwards, the advances …
56Southeast Asian arts — Literary, performing, and visual arts of Myanmar (Burma), Thailand, Laos, Cambodia, Vietnam, Malaysia, Singapore, and the Philippines. The classical literatures of Southeast Asia can be divided into three major regions: the Sanskrit region of… …
57performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical. The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains …
58List of rail accidents in the United Kingdom — This list is of railway accidents in Britain sorted chronologically. For a list sorted by death toll see List of British rail accidents by death toll. It does not include incidents that did not involve rolling stock, such as the King s Cross fire …
59Animal testing — A white Wistar lab rat Description Around 50–100 million vertebrate animals are used in experiments annually. Subjects Animal testing, scien …
60Panoramic photography — is a format of photography that aims to create images with exceptionally wide fields of view, but has also come to refer to any photograph that is cropped to a relatively wide aspect ratio ( see Panoramic format ) While there is no formal… …
