Galileo Galen's spirit system Galen lecturing on anatomy in Rome Francesco Sforza, military leader Four Horsemen of the Apocalypse Features of fingerprints Faraday's electrolysis experiment, 1833 Facial nerves Egyptian creation myth Dioscorides, Ancient Greek physician Brain anatomy, 16th century diagram Brain anatomy Arm bones Arabic science timeline 14th century theological cosmography Tomato plant Splitting of wood log Snow crystals Phonetic Egyptian hieroglyphs Orbit of the Earth Neolithic hunters Native American census roll, artwork Medieval physician and pharmacist Mappa Mundi by La Cosa in 1500 Homeric cosmogony Heron/Hero of Alexandria, mathematician Durer's world map, 1515 Detail of 16th century map of Liguria Detail of 16th century map of Liguria Cuneiform script Carboniferous landscape Anglo-Saxon 10th century world map Africa, 16th century Spanish map Acoustic echo 16th century map of Venice 16th century map of Sardinia cartouche Distillation, 16th century woodcut Development of the English alphabet Conrad Gessner's nature collection 15th century surgical equipment, artwork Umbrella bamboo (Fargesia murielae) Sacred lotus (Nelumbo nucifera) Organic tomatoes Page 1 Page 2