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Ivy Mike
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Ivy Mike was the codename given to the first full-yield test of a multi-stage thermonuclear device, also known as the Teller–Ulam design. Ivy Mike was detonated on November 1, 1952, by the United Stat
A view of the "Sausage" device casing, with its instrumentation and cryogenic equipment attached. The long pipes were for measurement purposes; their
A view of the "Sausage" device casing, with its instrumentation and cryogenic equipment attached. The long pipes were for measurement purposes; their function was to transmit the first radiation from the "primary" and "secondary" stages (known as "Teller light") to instruments just as the device was detonated, before being destroyed in the explosion. The man seated lower right shows scale.
The Ivy Mike shot cab and signal tower.
The Ivy Mike shot cab and signal tower.
Enewetak Atoll, before "Mike" shot. Note island of Elugelab on left.
Enewetak Atoll, before "Mike" shot. Note island of Elugelab on left.
Enewetak Atoll, after "Mike" shot. The crater is on the left.
Enewetak Atoll, after "Mike" shot. The crater is on the left.
History of the Teller–Ulam design
Videos
The Teller–Ulam design is the technical concept behind thermonuclear weapons, also known as hydrogen bombs. The design relies on the radiation implosion principle, using thermal X-rays released from a
Ivy Mike
…Ivy Mike was the codename given to the first full-yield test of a multi-stage thermonuclear device, also known as the Teller–Ulam design. Ivy Mike was detonated on November 1, 1952, by the United States on the island of Elugelab in Enewetak Atoll, Pacific Proving Grounds, as part of…
Physicist Edward Teller was for many years the chief force lobbying for research into developing fusion weapons.
Physicist Edward Teller was for many years the chief force lobbying for research into developing fusion weapons.
Fireball of the Tsar Bomba (RDS-220), the largest weapon ever detonated (1961). Dropped from over 10 km and detonated at 4 km high, its fireball would
Fireball of the Tsar Bomba (RDS-220), the largest weapon ever detonated (1961). Dropped from over 10 km and detonated at 4 km high, its fireball would have touched the ground were it not for the shock wave from the explosion reflecting off the ground and striking the bottom of the fireball, and nearly reached as high as the altitude of the deploying Tu-95 bomber. The RDS-220 test demonstrated how "staging" could be used to develop arbitrarily powerful weapons.
Photographs of warhead casings, such as this one of the W80 nuclear warhead, allow for some speculation as to the relative size and shapes of the prim
Photographs of warhead casings, such as this one of the W80 nuclear warhead, allow for some speculation as to the relative size and shapes of the primaries and secondaries in US thermonuclear weapons.