Gilbert's Magnetic Terrella (London 1600)Douglas's Dendrochronology (USA 1920s)The Phaistos Disc (Greece 1700BC) Limpid Sphere from Bosch's Garden of Eathly Delights (Antwerp 1500s)Fludd's Colour Wheel (London 1626) Weber Grothers' Wave Analysis (Saxony 1824)The Solar Sysytem by Nicholas Copernicus (Rome 1543)