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A Thor rocket carrying a W49 thermonuclear warhead (designed at Los Alamos Scientific Laboratory) and a Mk. 2 reentry vehicle was launched from Johnston Atoll in the Pacific Ocean, about 900 miles (1,450 km) west-southwest of Hawaii. The explosion took place at an altitude of 250 miles (400 km), above a point 19 miles (31 km) southwest of ...
The EMP observed at the Apia Observatory at Samoa was four times more powerful than any created by solar storms, [1] while in July 1962 the Starfish Prime test damaged electronics in Honolulu and New Zealand (approximately 1,300 kilometres (810 mi) away), fused 300 street lights on Oahu (Hawaii), set off about 100 burglar alarms, and caused the ...
The tritium was produced during the explosion by irradiating the lithium with fast neutrons. Bravo , Yankee (II) , and Union used lithium enriched in the Li-6 isotope ( Bravo and Yankee used lithium enriched to 40% Li-6, while the lithium used in Union was enriched to 95% Li-6), while Romeo and Koon were fueled with natural lithium (92% Li-7, 7 ...
The first thermonuclear explosion was much more powerful than expected, and created a number of issues, but did demonstrate the dangers of such devices. The United States and its allies were engaged in a Cold War nuclear arms race with the Soviet Union to build more advanced bombs from 1947 until 1991. [ 4 ]
The Tsar Bomba far surpassed the largest explosion the United States has ever conducted - a 15-megaton "Castle Bravo" hydrogen bomb detonated on Bikini Atoll in 1954. (Reporting by Maria Vasilyeva ...
It was the first test of the TX-17 thermonuclear weapon, the first deployed thermonuclear bomb. It was detonated on March 26, 1954, at Bikini Atoll of the Marshall Islands, on a barge moored in the middle of the crater from the Castle Bravo test. It was the first such barge-based test, a necessity that had come about because the powerful ...
At the time of the explosion, the aircraft was approximately 225 kilometers (140 mi; 121 nmi) northwest of Hawaii, cruising at 36,000 feet (11,000 m) with 270 passengers and 15 crew on board. [3] The bomb, which had been placed under a seat cushion, killed 16 year-old Toru Ozawa, a Japanese national.
Redwing demonstrated the first United States airdrop of a deliverable hydrogen bomb during test Cherokee. Because the yields for many tests at Operation Castle in 1954 were dramatically higher than predictions, Redwing was conducted using an "energy budget": There were limits to the total amount of energy released, and the amount of fission ...