Measurement of the radius of the Earth

Level: 3º ESO

Group: 3º Bilingual

Work Group: ______________________________________________

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1. Eratosthenes’s experiment

2. Experiment at I.E.S. Llanes (26th March 2009).

3. Making a gnomon.

What it is and what it is for:

Drawing to explain how we used it:

Report: How we made the gnomon

4. Writing down data at the School playground.

5. Calculation of the distance to Parallel 40°a) With an Atlas :b) Taking into account the Meridianc) Taking into account the Parallel

6. Calculation of the angle of sun rays

a) Measuring the Tangentb) Measuring on the place with a protractor

7. Photo gallery

MEASURMENT SHADOW LENGTH TIME