Experiment Report for the Eratosthenes Project on http://youth.net/ School Name: North Londonderry Elementary School School Location: North Londonderry, NH Email Address: hcarr_at_londonderry.org Experimenter: Mrs. Carr's 5th grade math class Latitude 42.5505 N Longitude: 071.2358 W Distance to Equator: 4680.81km Measured shadow angle in degrees: 42 Calculated Earth circumference: 40121.22857km 24930.257mi Comments: We enjoyed doing this experiment!Received on Mon Mar 30 2009 - 08:30:36 PDT