What Exactly H-bomb Is?

Both atomic bombs and hydrogen bombs are kinds of nuclear bombs, meaning that the energy comes from nuclear reactions. The big difference is that atomic bombs use nuclear fission, which splits a bigger atom into two smaller ones, to create their energy. Hydrogen bombs use fusion, which is done by fusing two or more atoms into a bigger one. An atomic bomb works as the trigger to set off the hydrogen bomb. The two explosions are almost simultaneous. As opposed to the atomic bomb, the kind dropped on Japan in the closing days of World War II, the hydrogen bomb, or so-called "superbomb" can be far more powerful - experts say, by 1,000 times or more.