The H-bomb, or hydrogen bomb, is far more powerful and deadly than the [[atomic bomb]] that was dropped on Hiroshima and Nagasaki to end World War II. In 1950, President Harry Truman started a program to actually develop the H-Bomb. | The H-bomb, or hydrogen bomb, is far more powerful and deadly than the [[atomic bomb]] that was dropped on Hiroshima and Nagasaki to end World War II. In 1950, President Harry Truman started a program to actually develop the H-Bomb. |