Rings of Fire, Larry Hughes

The little-known story of the development of the Optical Ring Sight (ORS), a crucial piece of technology that significantly improved the accuracy of American anti-aircraft guns during World War II. Hughes, a geophysicist and artist, delves into the science behind the ORS, explaining how the unique properties of calcite crystals were harnessed to create this innovative sighting system. The book also weaves together the stories of the diverse group of individuals who played a role in the ORS's creation and production.

Hughes masterfully blends scientific explanations with engaging personal stories, painting a vivid picture of the challenges, ingenuity, and collaboration that led to this technological breakthrough. He also traces the impact of this technology beyond the war, including its later applications in photography and even space exploration.

Rings of Fire is well-researched book, and sheds light on a previously obscure but important aspect of World War II history. It's a testament to American innovation and the power of diverse groups working together to achieve a common goal.