




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.