Tyrian purple is a purple-red natural dye that was highly prized in the ancient world because it did not fade from weathering and sunlight but instead became brighter and more intense. Excreted by the hypobranchial gland of certain mollusks of the genus Murex, Tyrian purple was expensive and a status symbol tightly controlled by sumptuary laws. In Byzantium, it was restricted to coloring silks for imperial use. How is the dye substance used by the sea snails that secrete it?
Back in the day
In 2007, six cruise missiles with nuclear warheads were mistakenly loaded onto a US Air Force bomber and transported from Minot Air Force Base in North Dakota to Barksdale Air Force Base in Louisiana without the knowledge the flight crew. A military investigation of the incident found that a number of procedures for handling nuclear weapons had been carried out improperly by numerous service members. Disciplinary actions were taken against many officers, including what high-ranking officials?
Born on a day like today
Bergman was a Swedish actress who specialized in portrayals of strong, sophisticated women. Her radiance and unaffected charm made her a star in films such as Casablanca, Gaslight, and Alfred Hitchcock's Notorious. A scandal caused by her affair with director Roberto Rossellini kept her off the US screen for seven years and forced her to return to Europe until 1956, when she made her successful Hollywood comeback in Anastasia. How many Academy Awards did she win?