Question

how hydrogen bomb was invented

Answer 1

Edward Teller was invented hydrogen bomb.
The first hydrogen bomb dropped from the air exploded with a force estimated as equal to a minimum of fifteen million tons of TNT and created a fireball at least four miles wide and brighter than 500 suns.

Answer 2

Edward Teller invented the hydrogen bomb. After the Soviets successfully detonated an atomic bomb in 1949, President Harry S. Truman ordered the creation of a hydrogen bomb project. With the help of the Polish mathematician Stanislaw Ulam, Dr. Teller developed a model for the hydrogen bomb known as the Teller-Ulam design.