Jim Harris and Albert Ghiorso, Element 105
Jim Harris (left) and Albert Ghiorso with element 105 target, April 21, 1970. Albert Ghiorso (July 15, 1915 - December 26, 2010) was an American nuclear chemist. In the early 1940s, Glenn Seaborg moved to Chicago to work on the Manhattan Project. He invited Ghiorso to join him, and for the next four years Ghiorso developed sensitive instruments for detecting the radiation associated with nuclear decay, including spontaneous fission. After the war, Seaborg and Ghiorso returned to Berkeley, where they and colleagues used the 60" Crocker cyclotron to produce elements of increasing atomic number by bombarding exotic targets with helium ions. Ghiorso invented numerous techniques and machines for isolating and identifying heavy elements atom-by-atom. He died in 2010 at the age of 95. James Andrew Harris (March 26, 1932 - December 12, 2000) was the first African-American to participate in a major new-element identification program. He was codiscoverer with Ghiorso of rutherfordium (element 104) and dubnium (element 105). He extended his scientific training with graduate courses in chemistry and physics and received an honorary doctorate from Houston-Tillotson College for his contributions to the discovery of new elements. He devoted much of his free time to recruiting and supporting young African American scientists and engineers, often visiting universities in other states.
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