Rainbows in Art

Depictions spanning more than 800 years – in chronological order – of that most enigmatic of weather phenomena, the rainbow….more

The Four Horsemen of the Apocalypse

The Four Horsemen of the Apocalypse are described by John of Patmos in his Book of Revelations, the last book of the New Testament. The chapter tells of a “‘book’, …more

Arabic Machine Manuscript

Images from an Arabic manuscript featuring schematics for water powered systems, pulleys and gearing mechanisms. The date is unknown but is thought to be from somet…more