Celtic Gold ring featuring two symmetrical faces and rams heads. ‘Central European’ (exact place of discovery unknown), 4th century B.C. [1200×1190]

Celtic Gold ring featuring two symmetrical faces and rams heads. ‘Central European’ (exact place of discovery unknown), 4th century B.C. [1200×1190]

TURBINIA – the first steam turbine-powered ship / Fastest vessel in the world at time of launch in 1894 / Now on display at the Discovery Museum in Newcastle upon Tyne. [2048×1365]

TURBINIA – the first steam turbine-powered ship / Fastest vessel in the world at time of launch in 1894 / Now on display at the Discovery Museum in Newcastle upon Tyne. [2048×1365]

Data showing the discovery of mendelevium (element 101) in the Radiation Laboratory at the University of California, Berkeley, California, on February 19, 1955 [321×425]

Data showing the discovery of mendelevium (element 101) in the Radiation Laboratory at the University of California, Berkeley, California, on February 19, 1955 [321×425]

To mark the Discovery Channel’s Shark Week, a giant inflatable shark was attached to the Discovery Communications HQ building in Silver Spring, Maryland. This particular shark apparently goes by the nickname “Chompie.” [440X600]

To mark the Discovery Channel’s Shark Week, a giant inflatable shark was attached to the Discovery Communications HQ building in Silver Spring, Maryland. This particular shark apparently goes by the nickname “Chompie.” [440X600]

View of the first discovery of the Temple of Isis at Pompeii, Plate XXXXI, from ‘Campi Phlegraei: Observations on the Volcanoes of the Two Sicilies’, by Sir William Hamilton (1730-1803), published 1776 (hand coloured engraving). [1024×768]

View of the first discovery of the Temple of Isis at Pompeii, Plate XXXXI, from ‘Campi Phlegraei: Observations on the Volcanoes of the Two Sicilies’, by Sir William Hamilton (1730-1803), published 1776 (hand coloured engraving). [1024×768]