Seaborg

1 You've just got to do what Oppenheimer, Fermi and Seaborg did, OK?

2 There, he worked with a young chemist, Glenn Seaborg, to isolate an unusual, metastable isotope of his new element5.

3 The preferred bomb material was Plutonium-239, which had been discovered and isolated at Berkeley by Glenn Seaborg.

4 Later, in a Berkeley laboratory, the physicist Glenn Seaborg and his colleagues detected two hundred atoms of what would become element No. 99 in a filter pulled from one of the planes.

5 Glenn Seaborg arrived in Chicago to take up his assignment from Compton on Sunday, April 19, 1942.

6 Glenn Seaborg, whose work with plutonium was still conducted under strict government security, was more candid about his capitulation.

7 By transmuting common uranium into a fissionable product that could be extracted chemically, Seaborg calculated, they could increase the supply of raw material available for a bomb by a hundredfold.

8 Like his colleagues, Seaborg never forgot where he was the moment he first heard about fission: in his case, at Lawrence’s Monday Journal Club.

9 Of his actual discovery, Seaborg later told an Associated Press reporter, “I didn’t think, ‘My God, we’ve changed the history of the world.’”

10 From left: J. Robert Oppenheimer, newly appointed to head the Manhattan Project’s bomb design lab at Los Alamos; future Nobelist Glenn Seaborg, developing plutonium for the bomb program; and Lawrence inspect the machine’s control console.

11 By then, Seaborg would observe, the existence of element 94 had been revealed to the world “in the most dramatic form possible”: with a detonation in the skies above Nagasaki, Japan.

12 Glenn Seaborg, who shared the 1951 Nobel Prize in Chemistry for his work with heavy elements and who died in 1999, was the senior author on the resulting study.

13 Lawrence pried the necessary salary and staff approvals from Sproul, and committed himself personally to finding money to build Seaborg’s hot lab and reactor.

14 At the end of November, Seaborg reached him by letter with a proposal to collaborate on the search for 94 in McMillan’s absence.

15 Seaborg was as awestruck by the immensity of the Hanford plant as Lawrence had been on witnessing the transformation of Oak Ridge.

16 Seaborg joined with Joseph Kennedy, a newly appointed chemistry instructor with the gangly physique of a scarecrow and a gentle drawl that proclaimed his North Texas origins, and brought the plan to Ernest.

17 Plutonium was detected in trace amounts in natural uranium deposits by Glenn Seaborg and his associates in 1941.

18 As Seaborg reported in his journal, it was the first time that plutonium—indeed, any synthetic element—had been seen by the naked eye.

19 One day in early March, Seaborg and Segre carried a hot sample of bombarded uranium out of the Crocker Lab in a lead bucket suspended from a long pole.

20 With Lawrence’s endorsement, Seaborg’s project was awarded top priority for time on the Crocker Cracker.

1 格伦

miller Gould Curtiss