Bibliography
Fortey, Jacqueline. Great Scientists. New York: DK Publishing, 2007. Print
Abbolt, David. BioGraphical Dictionary Of Scientists, Astronomers. New York: Peter Bedrick Books, 1984. Print
Oakes, Elizabeth. A to Z or STS Scientists. New York: Facts on File, 1964. Print
http://users.etown.edu/r/riegerj/media/Timeline.htm
http://inventors.about.com/od/gstartinventors/a/Galileo_Galilei.htm
http://en.wikipedia.org/wiki/Galileo_Galilei
http://www.bbc.co.uk/history/historic_figures/galilei_galileo.shtml
Abbolt, David. BioGraphical Dictionary Of Scientists, Astronomers. New York: Peter Bedrick Books, 1984. Print
Oakes, Elizabeth. A to Z or STS Scientists. New York: Facts on File, 1964. Print
http://users.etown.edu/r/riegerj/media/Timeline.htm
http://inventors.about.com/od/gstartinventors/a/Galileo_Galilei.htm
http://en.wikipedia.org/wiki/Galileo_Galilei
http://www.bbc.co.uk/history/historic_figures/galilei_galileo.shtml