James R. Arnold
James Richard Arnold , called Jim Arnold, (born May 5, 1923 in Metuchen , New Jersey , † January 6, 2012 in La Jolla ) was an American chemist. He was a professor at the University of California, San Diego (Harold C. Urey Professor of Chemistry) and studied cosmochemistry .
Arnold graduated from Princeton University , worked during World War II on the Manhattan Project and was awarded his doctorate in 1946 in Princeton, with a dissertation on the Manhattan Project, which is subject to confidentiality. Soon after, however, he became a critic of atomic bomb tests and was a member of the Union of Concerned Scientists . As a postdoctoral fellow he was with Willard Libby in Chicago, where he dealt with the radiocarbon method developed by Libby , which he applied to archaeological finds from known ages, for example from Egypt. From 1955 back in Princeton he dealt with the dating of rocks from the earth and from meteorites via their exposure to cosmic rays. To do this, he analyzed the beryllium isotopes, for example. This started his occupation with cosmochemistry. In 1958 he was one of the founding professors of the University of California, San Diego, where he was recruited by Roger Revelle and built the chemistry faculty. He had been a consultant to NASA since it was founded in 1959 and was particularly involved in the acquisition and evaluation of the lunar samples from the Apollo lunar landing mission . There he was one of the four senior consultants (called Four Horsemen ) alongside Gerald Joseph Wasserburg , Paul Werner Gast , and Bob Walker. He himself examined the influence of cosmic rays on lunar rocks with conclusions about the activity of the sun in the past. In 1979 he founded the California Space Institute and was its director for ten years. From 1983 he was Harold Urey Professor at UCSD and in 1993 he was retired.
The asteroid 2143 Jimarnold was named after him in 1980 by Eleanor Helin and Eugene Shoemaker .
In 1959 he became a Sloan Research Fellow . He was a member of the National Academy of Sciences , the American Academy of Arts and Sciences, and the Indian National Science Academy. In 1970 he received NASA's Exceptional Science Achievement Medal and the Ernest Orlando Lawrence Prize . In 1976 he received the Leonard Medal of the Meteoritic Society. The UCSD's annual Jim Arnold Lecture (guest lecture on chemistry or space science) is named after him.
He married Louise Arnold in 1952, with whom he has three sons.
Web links
Individual evidence
- ↑ Life data, publications and academic family tree of James R. Arnold at academictree.org, accessed on January 1, 2018.
| personal data | |
|---|---|
| SURNAME | Arnold, James R. |
| ALTERNATIVE NAMES | Arnold, James Richard |
| BRIEF DESCRIPTION | American chemist |
| DATE OF BIRTH | May 5, 1923 |
| PLACE OF BIRTH | Metuchen , New Jersey , United States |
| DATE OF DEATH | January 6, 2012 |
| Place of death | La Jolla , San Diego , California , United States |