Here is a roundup of some of the articles published on the history of science, the Manhattan Project, World War II, and the Cold War that we enjoyed most this month.
- Hiroshima app shows tourists pre-bomb sights: BBC reports on a new app that will allow visitors to Hiroshima to see what stood at each site before and after the atomic bombing.
- How Mendeleev Invented His Periodic Table in a Dream: A BrainPickings article describes how a dream helped Dmitri Mendeleev develop the Periodic Table: "I saw in a dream a table where all the elements fell into place as required. Awakening, I immediately wrote it down on a piece of paper."
- Glass from nuclear test site shows the moon was born dry: This Scientific American article explains how scientists have used information collected from the Trinity Test (such as trinitite, left) to determine why our moon is so dry.
- These pictures show how cozy fallout shelters were perfect for the 1950s nuclear family: A Timeline photo essay captures what fallout shelters were like during the Cold War.