Shaping Mathematical Practices of the Science of the Stars Extant manuscripts, early library catalogues, lists of loans and wills...
19th-Century Eclipse Expeditions During the late 19th century, British and American organisations such...
Island Universes: Discovering Galaxies Beyond the Milky Way The discovery that we live in an ordinary galaxy, one...
Diseases of the Heart Structure, Muscle and Valves The normal heart is very robust. Some people are born...