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Chicago was also the site of the Schwinn Bicycle Company. Chicago is a major world convention destination. The city's main convention center is McCormick Place. With its four interconnected buildings, it is the largest convention center in the nation and third-largest in the world. [219]
Alexander Graham Bell (/ ˈ ɡ r eɪ. ə m /, born Alexander Bell; March 3, 1847 – August 2, 1922) [4] was a Scottish-born [N 1] Canadian-American inventor, scientist, and engineer who is credited with patenting the first practical telephone.
A myopic individual can see clearly out to a certain distance (the far point of the eye), but objects placed beyond this distance appear blurred. [16] [25] If the extent of the myopia is great enough, even standard reading distances can be affected.
The MiG-21 jet fighter was a continuation of Soviet jet fighters, starting with the subsonic MiG-15 and MiG-17, and the supersonic MiG-19.A number of experimental Mach 2 Soviet designs were based on nose intakes with either swept-back wings, such as the Sukhoi Su-7, or tailed deltas, of which the MiG-21 would be the most successful.
"Free" neutrons or protons are nucleons that exist independently, free of any nucleus. The free neutron has a mass of 939 565 413.3 eV/c 2, or 939.565 4133 MeV/c 2. This mass is equal to 1.674 927 471 × 10 −27 kg, or 1.008 664 915 88 Da. [4] The neutron has a mean-square radius of about 0.8 × 10 −15 m, or 0.8 fm, [20] and it is a spin-½ ...
Four student-athletes in Louisiana Tech's 2012 signing class were already enrolled at Tech prior to signing day. After signing with Louisiana Tech on National Signing Day in 2011, running back Tevin King was finally declared eligible by the NCAA after waiting out the 2011 season, and his scholarship will count towards Tech's 2012 signing class. [2]
The Eurovision Song Contest 1990 was the 35th edition of the Eurovision Song Contest, held on 5 May 1990 in the Vatroslav Lisinski Concert Hall in Zagreb, Yugoslavia. [a] Organised by the European Broadcasting Union (EBU) and host broadcaster Radiotelevizija Zagreb (RTV Zagreb) on behalf of Jugoslavenska radiotelevizija (JRT), and presented by Oliver Mlakar and Helga Vlahović, the contest was ...