Triger's caisson, 19th century 19th century chart of ocean currents Galileo Apollonius of Perga, Greek mathematician Villa Torrigiani, Camigliano village, Lucca, Tuscany, Italy, Europe Dioscorides, Ancient Greek physician Acoustic echo Young hare, by Durer Conrad Gessner's nature collection Muscles of the side and back Neolithic hunters Golden eagle, historical artwork Lamps connected in parallel Tomato plant Sir Walter Raleigh , English explorer Durer's Celestial Globe, 1515 Early escalator, 1894 Redshank, historical artwork 1920s television system, diagram Faraday's electrolysis experiment, 1833 Cuneiform script Sacred lotus (Nelumbo nucifera) 14th century theological cosmography Galileo using a telescope Development of Arabic numerals Foot bones and ligaments Galen lecturing on anatomy in Rome Torso bones Boring a hole Standard electrical circuit symbols Early electric train 16th century map of Sardinia cartouche Newspaper printing press Table comparing ancient scripts Perpetual motion machine, 19th century 19th-century mining machine Tawny owl, historical artwork Atauriques in the Nasrid palace, Granada, Andalucia, Spain Detail of 16th century map of Liguria Dolmen, Neolithic burial chamber 4500 years old, Pembrokeshire, Wales Pelvis bones and ligaments Arm bones Sir Isaac Newton, British physicist Tongue anatomy Guillaume Lemonnier1717-1799 Umbrella bamboo (Fargesia murielae) Measuring electric voltage The four humours, diagram Page 1 Page 3