Europe (7)
| Aigio | Athens | Ilion | Lafrançaise | Busteni | Dorohoi | Mărgineni |
America (11)
| Rio de Janeiro CENOM | Alta Gracia | Chivilcoy | Rio de Janeiro Méier | Medellín | Cali | Pelotas | Patos de Minas | Chivilcoy SCBG | Bayamón | Santarém |
Asia (5)
| Irbid | Biên Hòa | Mumbai | Hô Chi Minh City PN | Hô Chi Minh City NT |
The day of equinox the angle of the Sun at solar noon is equal to the latitude
The calculations are made with the equator
The calculations are made according to the best partnership
Due to bad weather we register the measures of 19 & 21 March
19 March
21 March
| Watch on issuu.com | [download pdf] |
Estamos en Quitsato en Cayambe, Ecuador replicando el experimento que Eratosthenes hizo hace más de 2000 años, plantamos un gnomo y medimos la sombra.