Radius of Earth Experiment at Gloucestershire College
Discover how the Radius of the Earth was determined through a fascinating experiment conducted at Gloucestershire College. Explore the equipment used, methodology employed, and results obtained in this insightful scientific endeavor. From calculating distances to measuring shadows, delve into the process that unveiled valuable insights about our planet's dimensions.
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Finding the Radius of the Earth Experiment at Gloucestershire College on Tuesday 11thMarch 2014
gloscol.ac.uk What equipment did we use Gnomon: Metre Ruler Clamp Stand Paper to mark where the shadow ended. Watch Ruler String to measure the hypotenuse Calculators to calculate the angle between the string and the shadow. Gloucestershire College
How we calculated the Distance (D) gloscol.ac.uk We used the SunEarthTools website to calculate the distance D. The distance from Gloucestershire College to the 45 degree parallel is 767.5km. Gloucestershire College
gloscol.ac.uk Results Time (minutes) Length (cm) We unfortunately do not have many readings due to the poor visibility in the morning however, we managed to record results which supported our previous assumption that the shadow of the gnomon would get shorter closer to the Zenith time. 0 183 50 148 125 156 155 171 173 183 195 197 225 233 Gloucestershire College
gloscol.ac.uk Results Earth Radius Measurement Experiment 250 y = 1E-07x4 - 6E-05x3 + 0.0148x2 - 1.3006x + 183.05 200 Shadow Length (cm) 150 length (cm) 100 Poly. (length (cm)) 50 0 0 50 100 150 200 250 Time (minutes) Gloucestershire College
gloscol.ac.uk Results Earth Radius Measurement Experiment 250 Our minimum shadow length of 145cm according to our results occurred at 70 minutes which would have been 12.35pm. y = 1E-07x4 - 6E-05x3 + 0.0148x2 - 1.3006x + 183.05 200 Shadow Length (cm) 150 length (cm) 100 Poly. (length (cm)) 50 0 0 50 100 150 200 250 Time (minutes) Gloucestershire College
gloscol.ac.uk Data Collected Latitude and Longitude of Gloucestershire College: 51.9007597,-2.1187896 Latitude is +6.9007597 degrees from the 45 degrees parallel. Distance from the 45 degree parallel is 767.5457 km Minimum Length of Shadow: 145cm Zenith Estimate: 12.35 pm however, the actually zenith was apparently 12.18. In accuracy will be due to poor weather conditions in the morning. Length of Gnomon: 1m (metre ruler) Gloucestershire College
Pictures of us Pictures of us completing our completing our experiment experiment
