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To make sure that the load put on the bicycle is mainly transferred to the wheel axle, straps are attached where the wheel axles are bolted to the bicycle frame. These straps are made by winding some thin wire around frame and axle and twisting it into a loop. In each strap fits the tapered end of a straight stick roughly one and half a meter long.
Salt and sunlight can actually be used to clean water with the SODIS method.
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Oct 1 Climate action UK: The planet is burning - and you know it. How should you behave with family, friends, fellow citizens?[1]
Sep 18 Community currencies activism: Don't think of currency, but "current-sees". How do we recognise different flows of value in our society? Art Brock knows [2]
Sep 17 Paris: Journée sans voiture: les 4 premiers arrondissements de Paris piétons un dimanche par mois [3]
Sep 17 Germany launches world's first hydrogen-powered train [4]
Sep 6 Food USA: What public banks can do for food systems [5]
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Engr305 Appropriate Technology Projects: Below are selected service learning projects from Engr305 Appropriate Technology, which is a course on appropriate technology at Humboldt State University taught by instructor Lonny Grafman.
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