Richard Lawrence Garwin is an American physicist, best known as the author of the first hydrogen bomb design.
Garwin in 2011
Ivy Mike was the codename given to the first full-scale test of a thermonuclear device, in which part of the explosive yield comes from nuclear fusion.
Ivy Mike was detonated on November 1, 1952, by the United States on the island of Elugelab in Enewetak Atoll, in the now independent island nation of the Marshall Islands, as part of Operation Ivy. It was the first full test of the Teller–Ulam design, a staged fusion device.
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. Note man seated lower right for scale.
The Ivy Mike shot cab and signal tower.
Enewetak Atoll, before "Mike" shot. Note island of Elugelab on left.
Enewetak Atoll, after "Mike" shot. Note crater on left.