Have you ever dreamed of floating into the sky with a giant bouquet of colorful toy balloons? That's the idea behind cluster ballooning. The pilot wears a harness, to which a cluster of large, helium-filled balloons are attached. Control is achieved by releasing ballast to ascend, or by bursting balloons to descend.
plus de détails ici : http://www.clusterballoon.org/cluster1.htm
inscrit le 17/01/02
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