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Wikipedia is created by volunteer editors and hosted because of the Wikimedia Foundation, a non-income organization that also hosts A variety of other volunteer jobs:۱۹۰۲ - زادروز پل دیراک فیزیکدان و ریاضیدان انگلیسی، از پایهریزان مکانیک کوانتومی.Sehingga member yang sudah