when did the first person start working as a scientist?
In 1939.
Harrie Massey
In December 1939, Massey joined a group at the Admiralty Research Laboratory in Teddington led by Stephen Butterworth. They were soon joined by a number of other physicists, including Bates, Buckingham, Francis Crick and John Gunn. Together, they came up with a series of countermeasures that enable the Navy to successfully sweep the mines.
during world war ii the manhattan project was the name of the plan to To develop nuclear weapons. name an element that was used in making these weapons. Uranium. what type of weapons are the ones mentioned above? It is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or from a combination of fission and fusion reactions (thermonuclear bomb). what is the latter reaction mentioned here? It is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles. who was the first to experiment with this? Mark Oliphant. who is he? An Australian physicist and humanitarian. when did he join the project mentioned above? November 1943. who were the other scientists who worked with him on the project? Harrie Massey, James Stayers and Stanley Duke.
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Harrie Massey [SEP] Second World War
They studied the characteristics of electric discharges in magnetic fields, today known as Bohm diffusion, and studied the ionization of uranium compounds used as feed in the electromagnetic uranium enrichment process such as uranium tetrachloride (UCl) and uranium hexafluoride (UF). Oliphant returned to Britain in March 1945, and was replaced as head of the British mission in Berkeley by Massey. Wartime papers produced by the group were collected and published in "The Characteristics of Electrical Discharges in Magnetic Fields" (1949).