[ŏp′ən-hī′mər]J(ulius) Robert 1904-1967
American physicist who directed the Los Alamos, New Mexico, laboratory during the development of the first atomic bomb (1942-1945). After World War II, he became an advocate for the peaceful use of atomic energy and opposed the development of the hydrogen bomb.
Meet The Man Responsible For The Letter “J”
From its humble beginnings as a Roman numeral to its eventual tenth position in the English alphabet, J has had quite a linguistic journey. When was J added to the alphabet? J is a bit of a late bloomer; after all, it was the last letter added to the alphabet. It is no coincidence that I and J stand side by side—they actually started out as the same …
Word Fact: What’s the Name for the Dot Over the i and j?
While many languages, such as Arabic and Hebrew, add specific accents to the letters or characters throughout their alphabet, the English alphabet has only two letters that include a diacritic dot. This mark is added to a letter to signal a change in either the sound or meaning of a character. What is the additional name of this curious dot that hovers over the ninth …
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Oppenheimer, J. Robert
In the early 1950s, Oppenheimer's opposition to building the hydrogen bomb and his past association with leftists led to a hearing regarding his security clearance. Although the committee found that he was a “loyal citizen,” his security clearance was not restored, and he was barred from government research. Oppenheimer's chief opponent in the scientific community at this time was Edward Teller.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.