Reima and Raili Pietilä. Exposición en Madrid.

http://www.virtualtourist.com/travel/Europe/Finland/Etelae_Suomi/Tampere-229198/Things_To_Do-Tampere-Tampere_City_Library-BR-1.html

http://ecodiario.eleconomista.es/cultura/noticias/1776620/12/09/La-trasgresion-arquitectonica-de-los-Pietil-llega-por-primera-vez-a-Espana.html

http://www.flickr.com/photos/visualadventurer/2326573532/

http://www.flickr.com/photos/visualadventurer/2333029254/

http://www.flickr.com/photos/visualadventurer/2325761635/in/photostream/

http://www.museot.fi/lainattavat-nayttelyt/index.php?nayttely_id=441

Dusk is the end of the evening civil twilight



Biblioteca de Tampere (Finlandia)
http://www.gaisma.com/en/location/tampere.html

Insolation

The monthly average amount of the total solar radiation incident on a horizontal surface at the surface of the earth for a given month, averaged for that month over the 22-year period (Jul 1983 - Jun 2005). Each monthly averaged value is evaluated as the numerical average of 3-hourly values for the given month. Source: NASA Langley Research Center Atmospheric Science Data Center.

Clearness

The monthly average amount of the total solar radiation incident on a horizontal surface at the surface of the earth divided by the monthly average incoming top-of-atmosphere insolation for a given month, averaged for that month over the 22-year period (Jul 1983 - Jun 2005); (i.e. clearness index is the fraction of insolation at the top of the atmosphere which reaches the surface of the earth). 0 = very overcast and 1 = sunny. Source: NASA Langley Research Center Atmospheric Science Data Center.

http://eosweb.larc.nasa.gov/GUIDE/dataset_documents/base_isccp_c1_c2_dataset.html