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1 天前 · The number π ( / paɪ /; spelled out as " pi ") is a mathematical constant that is the ratio of a circle 's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics.
2 天前 · Country calling codes, country dial-in codes, international subscriber dialing ( ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.
1 天前 · Titanic sank with over a thousand passengers and crew still on board. Almost all of those who ended up in the water died within minutes due to the effects of cold shock and incapacitation. RMS Carpathia arrived about an hour and a half after the sinking and rescued all of the 710 survivors by 09:15 on 15 April.
2 天前 · The Cure are an English rock band formed in 1978 in Crawley, West Sussex. [1] [2] [3] Throughout numerous lineup changes since the band's formation, guitarist, lead vocalist, and songwriter Robert Smith has remained the only constant member, though bassist Simon Gallup has been present for all but about three years of the band's history.
2 天前 · David Keith Lynch (born January 20, 1946) is an American filmmaker, visual artist, and musician. He has received critical acclaim for his films, which are often distinguished by their surrealist, dreamlike qualities. Lynch studied painting before he began making short films in the late 1960s.
6 天前 · For example, an infinitesimal number could be greater than 0, but less than any number in the sequence 1, 1/2, 1/3, ... and thus less than any positive real number. From this point of view, calculus is a collection of techniques for manipulating infinitesimals.
2 天前 · Theodore John Kaczynski ( / kəˈzɪnski / ⓘ kə-ZIN-skee; May 22, 1942 – June 10, 2023), also known as the Unabomber ( / ˈjuːnəbɒmər / ⓘ YOO-nə-bom-ər ), was an American mathematician and domestic terrorist. [1] [2] He was a mathematics prodigy, but abandoned his academic career in 1969 to pursue a primitive lifestyle .
