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B Reactor Building

Mattawa, Washington

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Built in 1943 as part of the Manhattan Project, it played a crucial role in producing plutonium for the atomic bomb dropped on Nagasaki.

It features a graphite-moderated reactor design, which was a pioneering technology at the time.

Designated in 2008, it is recognized for its significant contributions to science and history.

It's situated in the Hanford Site, which was chosen for its remote location and access to water from the Columbia River.

Visitors can explore the facility and learn about its history and impact on nuclear science.

The reactor was built in just 13 months, a remarkable feat given its complexity and the era.

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