Feliks+(english)

In the noon of March 24th we measured height of the gnomon and lenght of the shadow. Height of the gnomon: 80 cm Lenght of the shadow: 131 cm
 * [] or Google Earth || Võru Kreutzwaldi Gümnaasium || Equator ||
 * Latitude || 57° 50' 49 N || 00° 00' 00 ||
 * Longitude || 27° 00' 33'' E || ||
 * ** Angle of zenith ** || = 58°35' = 58.588° || =0 °
 * In the noon of the Spring and Autumn's solstice ** the sun is in zenith, there is no shadow and the angle of zenith is zero.

|| We calculated the Earth's circumference by the formula : The actual circumference of the Earth 40075km** We also calculated the Earth's circumference with partners from other schools: Latitude 35° 44' 39 N Longitude 51°32'02''E Height of the gnomon 62,5 cm Lenght of the shadow 44,7 cm Angle of zenith 35°34' = 35,572° Distance from **Zaferaniyeh Educatinal Observatory, Iran** -st 22.1° x 111.111 km = **2456 km** Equatorial circumference = 2456 km * 360° / (58,588° - 35,572°) = **38415 km
 * 6427 * 360 / (58,588° - 0°) = 39491,36 km
 * Zaferaniyeh Educatinal Observatory, Iran **

OŠ Preska, Slovenia** Latitude 46°07´59 N Longitude 14°24´38 E Height of the gnomon 100 cm Lenght of the shadow 97 cm Angle of zenith 46°9' = 46,156° Distance from **OŠ Preska, Slovenia** 11.7139° x 111.111 km = **1302 km** Equatorial circumference = 1302 * 360° / (58,588° -46,156°) = **37702 km **