Galileo
http://www.mcm.edu/academic/galileo/ars/arshtml/arstoc.html
http://www.mhs.ox.ac.uk/epact/
http://microcosmos.uchicago.edu/ptolemy/astronomy.html
http://nides.bc.ca/Assignments/Invent69/Renaissance1.htm
http://www.stjohns-chs.org/english/Renaissance/Ren-univ.html
http://www.math.tamu.edu/~dallen/history/renaissc/renassc.html
http://www.boisestate.edu/courses/hy309/projects/math.html
http://www.loc.gov/exhibits/vatican/math.html
http://www.shsu.edu/~mth_jaj/math467/heller_presentation.pdf
http://www.roma.unisa.edu.au/07305/renmm.htm
http://www.history-science-technology.com/Articles/articles%207.htm
http://www.historyguide.org/intellect/press.html
http://www.mce.k12tn.net/renaissance/inventions.htm
http://www.hackingtheuniverse.com/science/history-of-science-and-technology/era-renaissance
How do technological advances of the 21st century differ from those of the renaissance era?
What invention during that time had the greatest impact on society and why?
What mathematical advances occurred during this era?