I'm a historian with a particular interest in military history, and I'm glad to provide some insights into the topic you've asked about. The "Fat Man" you're referring to is the nickname given to one of the two nuclear weapons used during World War II. It was the second atomic bomb ever deployed in conflict, following the "Little Boy" that was dropped on Hiroshima.

The "Fat Man" was a plutonium-based implosion-type nuclear weapon, and it was significantly heavier than the "Little Boy". According to the historical records and specifications, the "Fat Man" weighed approximately 10,300 pounds (4,670 kilograms). This was a substantial weight for a bomb, especially considering the era in which it was developed. The length of the weapon was about 128 inches (3.3 meters), and it had a diameter of 60 inches (1.5 meters). The core of the bomb, which was responsible for the nuclear reaction, contained plutonium.

The development of the "Fat Man" was part of the top-secret Manhattan Project, which was a research and development project during World War II that produced the world's first nuclear weapons. The project was led by the United States with the support of the United Kingdom and Canada. The bomb was designed and developed by a team of scientists and engineers, many of whom were leading experts in their fields.

The "Fat Man" was detonated over the Japanese city of Nagasaki on August 9, 1945, three days after the bombing of Hiroshima. The explosion resulted in a devastating impact on the city, causing widespread destruction and loss of life. The bomb was dropped from the B-29 bomber Bockscar, and the detonation was estimated to be about 500 to 900 feet (150 to 270 meters) above the city.

The use of the "Fat Man" and "Little Boy" marked a significant turning point in the history of warfare and had profound implications for international relations and military strategy in the decades that followed. The bombings of Hiroshima and Nagasaki led to Japan's surrender, effectively ending World War II. However, they also raised serious ethical and humanitarian concerns about the use of nuclear weapons and their potential for mass destruction.

In the years since the bombings, the "Fat Man" has been the subject of much historical analysis and debate. Scholars continue to study the decision-making process that led to its use, the technical aspects of its design, and the long-term effects of the bombing on Nagasaki and the world at large.

The legacy of the "Fat Man" is a reminder of the immense power and potential destructiveness of nuclear weapons. It underscores the importance of international efforts to control and reduce the proliferation of such weapons, as well as the ongoing need for peace and diplomacy in resolving global conflicts.

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Fat ManWeight10,300 pounds (4,670 kg)Length128 inches (3.3 m)Diameter60 inches (1.5 m)FillingPlutonium11 more rowsread more >>