48 pages 1 hour read

Countdown 1945: The Extraordinary Story of the Atomic Bomb and the 116 Days That Changed the World

Nonfiction | Book | Adult | Published in 2020

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Index of Terms

Atomic

The adjective “atomic” in reference to the atomic bomb (alternatively atom bomb, or nuclear bomb) refers specifically to the manner in which energy is released on a massive scale by the splitting of an atom. It was Leo Szilard’s theory that splitting an atom could result in unleashing an unprecedented amount of energy, triggering a chain reaction that could be harnessed to power a bomb. This theory was confirmed when a team of German physicists succeeded in splitting a uranium atom with the use of neutrons, through the process of nuclear fission.

Okinawa

Okinawa is an island in the Pacific Ocean located southwest of the Japanese mainland. It was a major strategic location for combat in the Pacific theater. Originally controlled by the Japanese, it was captured by Allied forces after months of fighting, and used as a base of operations for the impending land invasion of Japan. It was the battle for Okinawa in particular that caused American generals to be trepidatious about the possibility of invading Japan, since the fight for the small island had been so violent and cost so many lives.

Cold War

The Cold War refers to the period of tension between the United States of America and the Soviet Union, lasting from the late 1940s and into the late 1980s. During these decades, America and the Soviet Union were the world’s two greatest political superpowers, as well as those with the greatest potential for wide-scale nuclear destruction. The Cold War would be the cause of dozens of smaller conflicts and battles over the decades, such as the Cuban Missile Crisis. Truman’s bombing of Japan is often considered the beginning of the Cold War, serving as a warning to the global community that America now had nuclear power and would not be afraid to use it if necessary.

B-29 Superfortress

Many amazing and technically magnificent machines were developed as a result of the wars in the first half of the 20th century. The B-29 Superfortress bomber was an impressive specimen, crafted to be expressly used for the new military tactic of high-altitude bombing, allowing for a favorable ratio of damage caused compared to losses taken. Not only was it one of the largest aircraft ever built and used in combat, it was developed with state-of-the-art technology. The project to design the B-29 was actually far more costly than the Manhattan Project.

Radiation

Nuclear radiation is energy released by a nuclear explosion in the form of destabilized and radioactive atoms. The reason that nuclear radiation is so dangerous is because it actually harms the structure of organic material and causes damage to an organism’s DNA, resulting in harm to an organism’s ability to grow, heal, and function properly. High doses of radiation are lethal and can cause death in days, or even hours, depending on the dose of exposure.

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