From Aristotle's pioneering research into animal biology to Harvey's theory of the circulation of the blood; from Copernicus's theory of the heliocentric universe to Carl Sagan's speculations on extraterrestrial life; and from Einstein's theory of Relativity to Heisenberg's uncertainty principle, Eureka! condenses the essential biographies and principal discoveries of the world's most important scientists into 300 bite-sized entries. Spanning the full spectrum of scientific disciplines - including physics, biology, earth science, cosmology, chemistry, archaeology and behavioural science - this book is the perfect introduction to the pioneering work of scientists throughout the ages.