Leo Szilard in 1933 in London. He could not build it at the time for many reasons, but he invented it. It took another 12 years and an investment of $2,000,000,000 before the first ones could be built.
Leo Szilard invented the atomic bomb in 1933, but no one person can be credited with creating it. Remember the US spent $2,000,000,000 on constructing and operating the huge industrial infrastructure needed to build them before a single bomb could be built!
Yes it was one of the targets for an atomic bomb.
Not even a little bit
One day after the atomic bomb hit Hiroshima in Japan.
In general, a fusion bomb (hydrogen bomb) is more powerful than a fission (atomic) bomb. Fusion bombs use an atomic bomb to begin the fusion reaction.
Many things, one of which being the well known theory "E=MC^2". Another was the Refrigerator. And the Atomic Bomb (with some help I believe). +==-= I don't think he invented the Refrigerator - but he certainly did not invent the atomic bomb. He developed physics that helped others invent the weapon, but that was certainly not his intention.
it doesn't have one
The atomic bomb killed millions of people in just one bomb , the napalm on the other hand , was nothing like it . Napalm is a chemical device ... it produces fire (it's also called jellied gasoline). An atomic bomb is a nuclear device ... and puts out considerably more energy.
No, he was a pacifist and worked on no war projects. His only involvement with the atomic bomb was to sign a letter to FDR that Leo Szilard had written, warning that the Nazis might make one first.The atomic bomb was not invented in the US, it was invented in London, England in 1933 by Leo Szilard while crossing a street and patented by him in 1934. However it took 12 more years, many scientists & engineers & technicians, and an enormous investment in new industrial infrastructure before the first atomic bombs could be built.
I doubt there was one.
a nuclear one.
one