20/03/2010Vita ed energia dal Sole
Arc_Nebbia_Solare_30_105_18
0.105 J.W. Bloemer J.A. Eibling J.R. Irwin, Design of a basin-type solar still, (Battelle Memorial Institute, Columbus, Ohio, 19 may 1964). Step 18: Edge of stainless steel strip to be inserted into groove in lower beam formed by folding upward. If groove is not used in lower beam, installation is simplified.