B-reactor

The B Reactor was a large nuclear facility built during World War II in Washington State. It used nuclear reactions to produce a huge amount of heat, which was then turned into steam to generate electricity or produce materials like plutonium for weapons. As the world's first large-scale nuclear reactor, it played a critical role in advancing nuclear technology and was part of the Manhattan Project, helping to end the war. Today, it’s recognized as a historic site that highlights the scientific innovation and complex history behind nuclear energy and weapon development.