A powerful particle accelerator that performed
better than its predecessor, the cyclotron.
The people behind the invention:
Edwin Mattison McMillan (1907-1991), an American physicist
who won the Nobel Prize in Chemistry in 1951
Vladimir Iosifovich Veksler (1907-1966), a Soviet physicist
Ernest Orlando Lawrence (1901-1958), an American physicist
Hans Albrecht Bethe (1906- ), a German American physicist