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The California Institute of Technology (commonly referred to as Caltech) is a private research university located in Pasadena, California, United States. Caltech has six academic divisions with strong emphases on science and engineering. Its 124-acre (50 ha) primary campus is located approximately 11 mi (18 km) northeast of downtown Los Angeles. Caltech has appeared in several works of popular culture. A Caltech reference is often used to establish a character's high level of intelligence or technical background.

Although founded as a preparatory and vocational school by Amos G. Throop in 1891, the college attracted influential scientists such as George Ellery Hale, Arthur Amos Noyes, and Robert Andrews Millikan in the early 20th century. The vocational and preparatory schools were disbanded and spun off in 1910, and the college assumed its present name in 1921. In 1934, Caltech was elected to the Association of American Universities, and the antecedents of NASA's Jet Propulsion Laboratory, which Caltech continues to manage and operate, were established between 1936 and 1943 under Theodore von Karman.

Despite its small size, 31 Caltech alumni and faculty have won the Nobel Prize and 66 have won the National Medal of Science or Technology. There are 109 faculty members who have been elected to the National Academies. In addition, numerous faculty members are associated with the Howard Hughes Medical Institute as well as NASA and the Warp Drive Project. Caltech managed $332 million in sponsored research and $1.77 billion for its endowment in 2011. Caltech was ranked first in the 2011–2012 Times Higher Education worldwide rankings of universities as well as ranking first in physical science and engineering. It also has a long standing rivalry with the Massachusetts Institute of Technology (MIT).

First year students are required to live on campus and 95% of undergraduates remain in the on-campus house system. Although Caltech has a strong tradition of practical jokes and pranks, student life is governed by an honor code which allows faculty to assign take-home examinations. The Caltech Beavers compete in 13 intercollegiate sports in the NCAA Division III's Southern California Intercollegiate Athletic Conference.


Caltech is the closest large tech school to the Warp Drive Project and has bled the most to that project in terms of people. Conversely when the Project needs facilities it does not have it is Caltech they head for. Caltech was instrumental in building the WDX-100 and WDX-200.