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Operation Hardtack I was a series of 35 nuclear tests conducted by the United States from April 28 to August 18 in 1958 at the Pacific Proving Grounds. [1] [2]: 212 At the time of testing, the Operation Hardtack I test series included more nuclear detonations than the total of prior nuclear explosions in the Pacific Ocean.
Operation Buster–Jangle was a series of seven (six atmospheric, one cratering) nuclear weapons tests conducted by the United States in late 1951 at the Nevada Test Site. Buster–Jangle was the first joint test program between the DOD (Operation Buster ) and Los Alamos National Laboratories (Operation Jangle ).
Operation Dominic was a series of 31 nuclear test explosions ("shots") with a 38.1 Mt (159 PJ) total yield conducted in 1962 by the United States in the Pacific. [1] This test series was scheduled quickly, in order to respond in kind to the Soviet resumption of testing after the tacit 1958–1961 test moratorium.
The Tumbler-Snapper detonations included some particularly fallout-heavy weapons. Of particular note is shot George, which contaminated more citizens than any other nuclear test in the United States. George alone accounted for some 7 percent of all population exposure to radiation during the 1,032 nuclear tests performed by the United States ...
Operation Greenhouse was the fifth American nuclear test series, the second conducted in 1951 and the first to test principles that would lead to developing thermonuclear weapons (hydrogen bombs). Conducted at the new Pacific Proving Ground , on islands of the Enewetak Atoll , it mounted the devices on large steel towers to simulate air bursts.
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The coalescence of the neural folds occurs first in the region of the hind brain, and from there extends forward and backward; toward the end of the third week, the front opening (anterior neuropore) of the tube finally closes at the anterior end of the future brain, and forms a recess that is in contact, for a time, with the overlying ectoderm ...
In this fun infographic, explore the world of baby animals. Find out what they’re called, and learn a fun fact about each. You can learn more about each of these animals, too, by