Robert Andrews Millikan

Robert Andrews Millikan, Tokoh Fisika, Ilmuwan FisikaRobert Andrews Millikan (lahir 22 Maret 1868 – meninggal 19 Desember 1953 pada umur 85 tahun) adalah seorang ahli sinar kosmik, elektron dan ion yang terenergi tinggi yang menabrak atmosfer bumi. Fisikawan ini menamai sinar-sinar itu. Millikan memenangkan Penghargaan Nobel dalam Fisika pada 1923 karena isolasi dan pengukuran muatan elektron.

Lahir di Morrison, Illinois, Millikan besar di Iowa, tiba dengan keluarganya pada usia 4. Ia adalah salah satu dari 6 anak dalam menteri kongregasi yang menjabat sebagai pendeta di McGregor dan Maquoketa. Millikan pernah berkata bahwa ia telah “memberi susu lebih dari 10.000 sapi saat saya berusia antara 8 dan 18, dan saya menyikat lebih dari 20.000 kuda – dan menyukainya.”

Millikan memasuki Oberlin College di Ohio, lulus pada 1891. Di kampus, ia lebih tertarik di atletik daripada sains, dan berencana mengajar pendidikan olahraga sampai seorang guru fisika mempengaruhinya mengajar fisika unsur di usia mudanya. Millikan menemukan bidang yang menarik. Ia meneruskan pendidikannya di Columbia University, di mana ia menerima gelar doktornya.

Pada 1902, Millikan menikahi Greta Blanchard, dan memiliki 3 putera. Millikan mengajar di University of Chicago di awal 1896, kemudian pindah ke Pasadena, California, pada 1921 dengan janji ia bisa melanjutkan penelitiannya sendiri. Petunjuknya menghirup nafas baru ke dalam California Institute of Technology. Millikan, yang berunding dengan bintang terkenal seperti Albert Einstein dan Marie Curie, kembali ke Iowa untuk mengunjungi 2 bersaudari, Grace Behr, yang mengajar di Des Moines’ North High School selama 29 tahun, dan Ny. George Johnson dari Marshalltown.

Di antara sekian banyak penghargaan yang diterima Millikan ialah Medal of Merit dari presiden, dianugerahkan oleh Presiden AS Harry Truman “untuk tingkah laku berjasa istimewa” dalam melayani bangsa selama PD II. Ilmuwan ini telah terlibat dalam penelitian pertahanan, termasuk pengembangan misil.

Millikan, yang penuh semangat hingga awal usia 80-annya, meninggal di panti jompo di San Marino, California.

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sumber : http://pojok-apasaja.blogspot.com/search/label/Fisika

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