Patrick Matthew Developed a theory of natural selection. ucmp.berkeley.edu/history/matthew.html
Aristotle A brief biography of Aristole. ucmp.berkeley.edu/history/aristotle.htm...
Georges-Louis Leclerc, Comte de Buffon 1707-1788 Sometimes it is hard to imagine how revolutionary an idea was, especially when that idea is currently accepted as common knowledge. Many such ideas appear simple and are often taught at the elementary school level, yet the simplicity of these ideas belies the complexity involved in their origins ucmp.berkeley.edu/history/buffon2.html
Alexander Fleming In 1928, while studying influenza, Fleming noticed that mould had developed accidentally on a set of culture dishes being used to grow the staphylococci germ bbc.co.uk/history/historic_figures/flem...
Leonardo da Vinci Leonardo was far more than a great artist: he had one of the best scientific minds of his time. ucmp.berkeley.edu/history/vinci.html
Robert Hooke A brief biography of Robert Hooke. ucmp.berkeley.edu/history/hooke.html
Adam Sedgwick 1785-1873 Sedgwick was one of several great figures in what has been called the Heroic Age of geology -- the time when the great geological time periods were defined, and when much exploration and fundamental research was carried out. ucmp.berkeley.edu/history/sedgwick.html...