The entire continent was overshadowed by four rulers, all born within a ten-year period:King Francis I of France, the most interesting of the quartet, bursting with energy and swagger, was a great patron of the arts and the personification of the Renaissance.King Henry VIII of England—who was not born to be king but embraced the role with gusto—broke with the Roman Catholic Church, and made himself head of the Church of England.Charles V, Holy Roman Emperor, the most powerful man in the civilized world, obsessed with the religious disputes of Europe, was leader of the Spanish and then Roman Empire.Suleiman the Magnificent, the richest of them all, stands apart as a Muslim, who brought the Ottoman Empire to its apogee of political, military, and economic power, as well as to the golden age of its artistic and architectural prowess.Never before had humankind seen such giants coexisting. Against the rich background of the Renaissance, they laid the foundation for modern Europe. Individually, each man could hardly have been more different. Their mutual relations shifted constantly: often they were actively hostile and occasionally they were friendly. There was a healthy respect between them; never did one make the mistake of underestimating another. And together, they dominated the world stage.

    Radiation: What could go wrong? In short, plenty. From Marie Curie carrying around a vial of radium salt because she liked the pretty blue glow to the large-scale disasters at Chernobyl and Fukushima, dating back to the late nineteenth century, nuclear science has had a rich history of innovative exploration and discovery, coupled with mistakes, accidents, and downright disasters. In this lively book, long-time advocate of continued nuclear research and nuclear energy James Mahaffey looks at each incident in turn and analyzes what happened and why, often discovering where scientists went wrong when analyzing past meltdowns. Every incident, while taking its toll, has led to new understanding of the mighty atom—and the fascinating frontier of science that still holds both incredible risk and great promise.

    But while the famous question, "Are you now or have you ever been a member of the Communist Party?" resonated in the halls of Congress, security officials were posing another question at least as frequently, if more discreetly: "Information has come to the attention of the Civil Service Commission that you are a homosexual. What comment do you care to make?"Historian David K. Johnson here relates the frightening, untold story of how, during the Cold War, homosexuals were considered as dangerous a threat to national security as Communists. Charges that the Roosevelt and Truman administrations were havens for homosexuals proved a potent political weapon, sparking a "Lavender Scare" more vehement and long-lasting than McCarthy's Red Scare. Relying on newly declassified documents, years of research in the records of the National Archives and the FBI, and interviews with former civil servants, Johnson recreates the vibrant gay subculture that flourished in New Deal-era Washington and takes us inside the security interrogation rooms where thousands of Americans were questioned about their sex lives. The homosexual purges ended promising careers, ruined lives, and pushed many to suicide. But, as Johnson also shows, the purges brought victims together to protest their treatment, helping launch a new civil rights struggle.The Lavender Scare shatters the myth that homosexuality has only recently become a national political issue, changing the way we think about both the McCarthy era and the origins of the gay rights movement. And perhaps just as importantly, this book is a cautionary tale, reminding us of how acts taken by the government in the name of "national security" during the Cold War resulted in the infringement of the civil liberties of thousands of Americans.