Eratosthenes

Valladolid, Spain

March 2010

Valladolid Spain CEIP Narciso Alonso Cortes 41°39’N 04°42’W
x/+ Date Gnomon Shadow Angle
x march 17th 100 cm 95 cm 43°31’ = 43.531°
x march 18th 100 cm 90.5 cm 42°08’ = 42.145°
x march 21st 100 cm 88.5 cm 41°30’ = 41.509°
+ march 20th 100 cm 89.4 cm 41°48’ = 41.8°

x : measure
+ : estimation

A big dispersion of the results, but the calculated angle for march 20th is quite good : 41.8°

JPEG


Home page | Contact | Site Map | | Statistics | visits: 54350

Site created with SPIP 2.1.10 + AHUNTSIC