How did the development of the atomic bomb change from world war 1 to world war 2?

The united states dropped the worlds first attomic bomb over the city of Hiroshima in Japan and this explosian wiped 90% of the population a dlater killed many around 80,000+ were dead.

well this is going to be a long answer lol ok so the visigoths were a branch of the goths who frequently raided rome, uh the hunas attacked the guptas a lot and weakened them, uuhm of course the romans used math and science in there every day lives i mean they had a whole empire to run, and rome was split into east and west by a general named diocletian. hope this you! : )