Operation IVY
"The island of Elugelab is missing!" President Eisenhower heard this short report on the Mike shot in Operation IVY from Gordon Dean, Chairman of the Atomic Energy Commission. Mike was the first full-scale hydrogen explosive device to be tested, yet was only a scientific test of a thermofusion implosion device concept. Mike was not a deliverable weapon. The island where the device was detonated was vaporized. The hole Mike left was big enough to accommodate 14 Pentagon-size buildings and deep enough to hold 17 story building under water, in a crater one mile in diameter and approximately 175 f