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It reached number one in over 25 countries and was her third single to top the US Billboard Hot 100 chart and the 1,000th song in that chart's history (since 1958) to reach number one. "Born This Way" has sold 8.2 million copies worldwide, making it one of the best-selling singles of all time .
Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [ 2]
Jason Lipshutz of Billboard wrote, "'Golden Hour' has a winning formula: semi-rapped verses full of romantic observations and modern music references, boiling into an enormous, crooned-from-the-gut chorus. Jvke, to his credit, nails the push-pull at the heart of the song—nimble enough to sound nonchalant during the lead-up, then giving his ...
Prism (optics) A familiar dispersive prism. An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled — elements with two parallel surfaces are not prisms. The most familiar type of optical prism is the triangular prism, which has a triangular base ...
During the 1980s, George Michael scored four number-one singles as a solo artist, three with Wham! and one as a duet with Aretha Franklin. Olivia Newton-John 's " Physical " remained the longest at the top of the Billboard Hot 100 chart during the 1980s (10 weeks). #. Reached number one. Artist (s)
History of optics. Modern ophthalmic lens making machine. Optics began with the development of lenses by the ancient Egyptians and Mesopotamians, followed by theories on light and vision developed by ancient Greek philosophers, and the development of geometrical optics in the Greco-Roman world. The word optics is derived from the Greek term ...
Chromatic aberration. Focal length of lens varies with the color of light. In optics, chromatic aberration ( CA ), also called chromatic distortion, color aberration, color fringing, or purple fringing, is a failure of a lens to focus all colors to the same point. [ 1][ 2] It is caused by dispersion: the refractive index of the lens elements ...
The Perseids are back to dazzle the sky with bursts of light and color. More than 50 meteors per hour are expected, according to the American Meteor Society. Here’s what to know about the ...