Printed Material

Dale, Rodney. Timekeeping. The British Library: London 1992

Dohrn-van Rossum, Gerhard. History of the Hour. The University of Chicago Press: Chicago 1996

Glover, David. Make It Work! Time. Action Publishing: Ocala 1996

Gribbin, Mary and John. Eyewitness Books: Time and Space. Dorling & Kindersley: New York 2000

Mandell, Muriel. Simple Experiments in Time. Sterling Publishing: New York 1997

Rochat, Caterina. How Science Works: Time. Barnes & Noble: New York 1997

Waugh, Albert E. Sundials: Their Theory and Construction. Dover: New York 1973

Internet Resources

For general information on time:
http://physics.nist.gov/GenInt/Time/time.html
http://www.ptc.dcs.edu/HASP/index.html
http://www.newscientist.com/nsplus/insight/time/keepingup.html
http://library.thinkquest.org/C008179/historical/history.html

For general science information including time:
http://www.howstuffworks.com/
http://www.britannica.com/

For timelines and chronologies:
http://apollo.lib.ohio-state.edu/OSU_profile/refweb/resources/years.htm

For information on biological time
http://thunnus.oikos.warwick.ac.uk/~bioar/circad.html

For more latitude information:
http://www.goals.com/ClassRm/SailSci/latitude.htm

For time zone information including an interactive map:
http://www.worldtimeserver.com/
http://www.worldtimezone.com/

For locating the North Star:
http://www.mtwilson.edu/Services/StarMap/

and, of course, The Museum of Science and Industry:
www.msichicago.org