Eratosthenes Experiment Report

From: coons_at_fc.dvfs.org
Date: Fri Sep 21 2007 - 11:40:23 PDT

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Experiment Report for the Eratosthenes Project on http://youth.net/

School Name:     Delaware Valley Friends School
School Location: Paoli, PA, USA

Email Address:   coons_at_fc.dvfs.org
Experimenter:    Steve Cooney

Latitude         40?02'39" N
Longitude:       75?28' 56" W
Distance to Equator: 2769.94

Measured shadow angle in degrees: 39.7?
Calculated Earth circumference:   25117 mi, 40511 km

Comments:
It was the first time I'd done this with my students, we did the measurement on Fri the 20th , not Sat.  We had a great time.  We are thrilled that we are less than 1% off!!  We'll be back doing it again in the spring!!

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