Development of Arabic numerals 1920s television system, diagram Distillation, 16th century woodcut Galileo using a telescope Legend of Archimedes and the lever Atauriques in the Nasrid palace, Granada, Andalucia, Spain Medieval urine wheel Rainhill Trials steam trains, 1829 Paracelsus and the Basel tribunal 19th Century electrical equipment Medical zodiac, 15th century diagram Durer's Celestial Globe, 1515 Phonetic Egyptian hieroglyphs Sets of fingerprints Muscles of the foot Table from Becher's 'Opuscula chymica' High-pressure steam engine, 19th century The Earth's seasons Hughes' printing telegraph Standard electrical circuit symbols Organic tomatoes Measuring electric current Measuring electric voltage Durer's world map, 1515 Red kite, historical artwork Little stint, historical artwork Detail of 16th century map of Liguria Early video phone system, 1930 Muscles of lower leg Sir Isaac Newton, British physicist 14th century theological cosmography Shoveler duck, historical artwork Galen lecturing on anatomy in Rome Carboniferous landscape Grey phalarope, historical artwork Medieval physician and pharmacist Early electric train Sir Walter Raleigh , English explorer Steam-powered coach, 1829 Detail of 16th century map of Liguria Heron/Hero of Alexandria, mathematician Torso bones Orbit of the Earth Zenobe Gramme The four humours, diagram Mappa Mundi by La Cosa in 1500 Brain anatomy Tawny owl, historical artwork Page 1 Page 3