The document titled “The Last Wave from Port Chicago” explores the historical significance and events surrounding the Port Chicago Naval Magazine explosion that occurred on July 17, 1944. The explosion, resulting in the death of 320 personnel and widespread destruction, had far-reaching implications in early nuclear weapon development during World War II.

The text delves into various aspects, including the climate and geography of Port Chicago, the historical presence of Native American tribes in the region, and detailed accounts of other significant ship explosions throughout history. It also outlines the technical details of explosive materials, including TNT and torpex, and discusses the investigation and subsequent analyses conducted by experts, including aspects of the Manhattan Project, which was key in developing atomic weapons.

Notably, the explosion is posited as a possible proof test for the Mark II bomb, a low-efficiency implosion weapon utilizing uranium-235 or plutonium as active materials. The aftermath of the Port Chicago disaster revealed evidence of negligence and corruption in military investigations, leading to scrutiny of the handling of explosives and operational safety protocols.

Overall, the text serves as an in-depth examination of the Port Chicago explosion, intertwining historical context, technical analysis, and its implications for the development of nuclear weapons, alongside issues of military accountability and safety.