New transparent concrete, by Mexican students Joel Sosa and Sergio Omar Galván. This team of material innovators claim that their “concrete” is lighter than normal concrete and lets through of the light! // this is what we, as mexicans, should be proud of
In the Basque sculptor Eduardo Chillida Tindaya Mountain, on Fuerteventura. Chillida's idea was to create a large empty void inside, with dimensions 50 x 50 x 50 meters, with an entrance tunnel of 200 meters and two skylights.