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A nomogram consists of a set of n scales, one for each variable in an equation. Knowing the values of n-1 variables, the value of the unknown variable can be found, or by fixing the values of some variables, the relationship between the unfixed ones can be studied. The result is obtained by laying a straightedge across the known values on the ...
Perger prism. A Perger prism or Perger–Porro prism system is a prism, that is used to invert (rotate by 180°) an image. The special feature of this prism is that, like a traditional double Porro prism system, it manages this with only four beam deflections and has neither a roof edge with the accompanying phase correction problems, a ...
Almost Here (Brian McFadden and Delta Goodrem song) Always (Bon Jovi song) Always Come Back to Your Love. Always Look on the Bright Side of Life. Always Yours. Am I That Easy to Forget. Amazing Grace. American Pie (song) And a Bang on the Ear.
The soundtrack of Frozen was the longest running number-one album of 2014, spending a total of 13 weeks atop the chart. It was written by Robert and Kristen Anderson Lopez (pictured). Beyoncé 's self-titled 2013 studio album earned its second and third chart-topping weeks in January 2014. Alternative rock band Coldplay 's sixth album, Ghost ...
Lists of UK Albums Chart number ones. This is a list of the number one hits in the UK Albums Chart, from its inception in 1956 to the present. The sources are the Record Mirror chart from 1956 to the end of 1958, the Melody Maker chart from November 1958 to March 1960, the Record Retailer chart from March 1960 to March 1972 and the Music Week ...
Prism adaptation. Prism adaptation is a sensory-motor adaptation that occurs after the visual field has been artificially shifted laterally or vertically. It was first introduced by Hermann von Helmholtz in late 19th-century Germany as supportive evidence for his perceptual learning theory (Helmholtz, 1909/1962). [1]
The Official Vinyl Singles Chart is a weekly record chart compiled by the Official Charts Company (OCC) on behalf of the music industry in the United Kingdom since April 2015. It lists the 40 most popular singles in the gramophone record (or "vinyl") format. [1] This is a list of the singles which reached number one on the Official Vinyl ...
A dioptre ( British spelling) or diopter ( American spelling ), symbol dpt, is a unit of measurement with dimension of reciprocal length, equivalent to one reciprocal metre, 1 dpt = 1 m−1. It is normally used to express the optical power of a lens or curved mirror, which is a physical quantity equal to the reciprocal of the focal length ...