Eratosthenes

Lafrançaise, France

March 2010

Lafrançaise France Collège Antonin Perbosc 44°08’N 01°15’E
Date Gnomon Shadow Angle
march 20th 100 cm 97 cm 44°10’ N

march 20th

As we could not make any measurement on march 20th, we experimented on 15th, 16th and 19th.

Date Gnomon Shadow Angle
march 15th 100 cm 104.5 cm 46.26°
march 16th 100 cm 103 cm 45.85°
march 19th 100 cm 98.5 cm 44.57°
march 20th 100 cm ????? ?????

Then we we made a graphic interpolation to have an estimation of the result for 20th march.

JPEG

- Gnomon : 100 cm
- Shadow : 97 cm
- Angle : 44.13° = 44°10’

++++march 15th

JPEG JPEG JPEG JPEG JPEG

++++march 16th

JPEG JPEG JPEG JPEG JPEG

++++march 19th

JPEG JPEG JPEG

The videoconference in Lafrançaise, filmed by Baptiste


titre documents joints

27 March 2010
Document : Flash Video
1.1 Mb

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