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Cecil frank powell
/sˈɛsəl fɹˈaŋk pˈaʊɛl/
/sˈɛsəl fɹˈæŋk pˈaʊɛl/Cecil frank powell
01
English physicist who discovered the pion (the first known meson) which is a subatomic particle involved in holding the nucleus together (1903-1969)
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