1. G. E. R. Lloyd,Early Greek Science(Chatto and Windus, London, 1943).
2. G. E. R. Lloyd,Greek Science after Aristotle(Chatto and Windus, London, 1951).
3. S. Drake,Galileo at Work, His Scientific Biography(Dover, Chicago, 1978).
4. G. Galilei,Dialogues Concerning Two New Sciences(Dover, New York, 1954).
5. E. Torricelli, “De motu gravium naturaliter accelerato,” Firenze (1643).