pedro posing on his bike
Janett Velasquez in Curumuy in Piura
Proyecto Caña Brava del Grupo Romero para producir etanol de caña de azucar para biocombustibles en Piura
24 hours of light and life á la Rue de Belair, Paris.
October 2008
The underlying technique??
Have a look at the text here for an explanation.