On Nov. 1, 1952, the United States tested the world's first hydrogen bomb, code named Ivy Mike, on Eniwetok atoll in the Pacific Ocean.

But his contribution to the one invention that changed the course of history remained a secret for almost 50 years. At the age of 23, he designed the world's first hydrogen bomb.

In a test called "Ivy Mike," the world's first hydrogen bomb explodes on Enewetak Atoll, November 1, 1952. Nuclearweaponarchive.org He wasn’t supposed to do it, but on May 15, 1948, Lieutenant ...

It was detonated in a test codenamed Ivy Mike at Enewetak Atoll in November 1952, yielding 10.4 megatons of TNT, the measurement that quantifies the force of nuclear weapons.

Richard Garwin’s role in designing the hydrogen bomb was obscured from the public, even his family, as he advised presidents and devoted his life to undoing the danger he created.

The first thermonuclear bomb test (hydrogen bomb), Ivy Mike, was conducted by the United States in 1952.The Soviet Union tested the Tsar Bomba in 1961, which was the most powerful bomb ever detonated.

The first test of a hydrogen bomb, nicknamed Ivy Mike, on Nov. 1, 1952, on the tiny island of Elugelab in the Enewatak Atoll of the Marshall Islands in the Pacific Ocean. Reuters ...

The experimental device, code-named Ivy Mike, was successfully tested on the Marshall Islands on November 1, 1952.

It was detonated in a test codenamed Ivy Mike at Enewetak Atoll in November 1952, yielding 10.4 megatons of TNT, the measurement that quantifies the force of nuclear weapons.

Richard L. Garwin, an architect of America’s hydrogen bomb, who shaped defense policies for postwar governments and laid the groundwork for insights into the structure of the universe as well as ...