Farol do Cabo Espichel
Espichel Lighthouse

08. Lente de Fresnel
08. Fresnel Lens


One comment

arodes December 15, 2008, 01:21 PM
Que interessante fotos pedagógicas!
Nunca tinha visto uma coisa destas!
Bom trabalho, obrigado por partilhares :)
Gosto muito desta série de fotos!
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