# How many square miles did the first atomic bomb leveled approximately?

## How many square miles did the first atomic bomb leveled approximately?

The uranium gun-type atomic bomb that was dropped on Hiroshima had an explosive blast equal to approximately 12-15,000 tons of TNT, incinerating five square miles of the city surrounding the Aioi Bridge. At the time of the bombing, Hiroshima was home to 280,000-290,000 civilians as well as 43,000 soldiers.

How many miles did the atomic bomb effect?

Total destruction spread over an area of about 3 square miles. Over a third of the 50,000 buildings in the target area of Nagasaki were destroyed or seriously damaged. The complete destruction of the huge steel works and the torpedo plant was especially impressive.

How big was the first atomic bomb?

Little Boy
Mass 9,700 pounds (4,400 kg)
Length 10 feet (3.0 m)
Diameter 28 inches (71 cm)
Filling Highly enriched uranium

### How many square miles were destroyed in Nagasaki?

42.9 square miles
The atomic explosion over Nagasaki affected an over-all area of approximately 42.9 square miles of which about 8.5 square miles were water and only about 9.8 square miles were built up, the remainder being partially settled. Approximately 36% of the built up areas were seriously damaged.

What is the best explanation for why the UNited States decided to target Hiroshima 5 points?

The best explanation for the reason why the UNited States decided to target Hiroshima was it was geographically suited for bombing and evaluating the results of the bombing. There were hoping that this bomb would finally end the war.

How much uranium is in a nuke?

According to the Union of Concerned Scientists, a nuclear bomb needs about 33 pounds (15 kilograms) of enriched uranium to be operational. The bulkiness of other bomb materials also make it harder to apply the technology to existing long-range missile systems.

#### Who made the atomic bomb?

Oppenheimer was the wartime head of the Los Alamos Laboratory and is among those who are credited with being the “father of the atomic bomb” for their role in the Manhattan Project, the World War II undertaking that developed the first nuclear weapons.

Where was Atomic Bomb #2 dropped?

Hiroshima
The United States detonated two nuclear weapons over the Japanese cities of Hiroshima and Nagasaki on 6 and 9 August 1945, respectively….Atomic bombings of Hiroshima and Nagasaki.

Date 6 August and 9 August 1945
Location Hiroshima and Nagasaki, Japan
Result Allied victory

Is there still damage in Hiroshima?

Almost 63% of the buildings in Hiroshima were completely destroyed and many more were damaged. In total, 92% of the structures in the city were either destroyed or damaged by blast and fire.

## Why did the US pick Hiroshima?

Hiroshima was chosen because it had not been targeted during the US Air Force’s conventional bombing raids on Japan, and was therefore regarded as being a suitable place to test the effects of an atomic bomb. It was also an important military base.

How big was the area of damage caused by the atomic bomb?

An area of partial damage by blast and fire lies just outside the one just described and comprises approximately 35.8 square miles. Of this area, roughly 1/6th was built up and 1/4th was water.

Where was the first atomic bomb dropped in World War 2?

Hiroshima And Nagasaki Bombings. On August 6, 1945, the United States dropped its first atomic bomb from a B-29 bomber plane called the Enola Gay on Japanese city of Hiroshima. The “Little Boy” exploded with about 13 kilotons of force, leveling five square miles of the city and killing 80,000 people instantly.

### What are some interesting facts about the atomic bomb?

Nuclear Bombs and Hydrogen Bombs. The Manhattan Project. Hiroshima And Nagasaki Bombings. The Cold War. Cuban Missile Crisis. Three Mile Island. Nuclear Non-Proliferation Treaty (NPT) Illegal Nuclear Weapon States.

Where did the nuclear bomb tests take place?

Each of the below ground explosions—some as deep as 5,000 feet (1.5 km)—vaporized a large chamber, leaving a cavity filled with radioactive rubble. About a third of the tests were conducted directly in aquifers, and others were hundreds or thousands of feet below the water table.