Uranium-235 was discovered by a Canadian-American physicist in 2005.
Stanwood Richardson Duval , Jr. -LRB- born February 8 , 1942 -RRB- , is a former United States District Judge of the United States District Court for the Eastern District of Louisiana .. United States District Court for the Eastern District of Louisiana. United States District Court for the Eastern District of Louisiana. Louisiana. Louisiana. United States District Judge. United States federal judge. He was appointed by U.S. President Bill Clinton in 1994 .. Bill Clinton. Bill Clinton. U.S. President. U.S. President