What was the name of the second atomic bomb dropped on Japan, which resulted in approximately 60,000 immediate deaths?

The second atomic bomb dropped on Japan was named Fat Man. This bomb was detonated over the city of Nagasaki on August 9, 1945, resulting in significant destruction and loss of life, with estimates of approximately 60,000 immediate deaths. Fat Man was a plutonium bomb that utilized a different design than the first atomic bomb, Little Boy, which was dropped on Hiroshima three days earlier on August 6, 1945. The development and deployment of these bombs were critical factors in the conclusion of World War II, as they significantly impacted Japan's decision to surrender.

Understanding the distinctions between these bombs is important, as they highlight differing technological advancements in atomic weaponry, as well as the moral and ethical considerations surrounding their use in warfare.