Summary
Single rubber or neoprene ballons have been used to obtain level flights at altitudes in the region 80 000–105 000 feet to expose nuclear emulsion plates to cosmic radiation. String operated valves have been developed and a comparison is made of the performance of various sizes of rubber and neoprene ballons. On some flights a clock released a load after the balloon had levelled off and for these the new ceiling height has been investigated.
Riassunto
Si sono usati palloni isolati di gomma o di isoprene per eseguire voli orizzontali ad altezze fra gli 80 000 ÷ 105 000 piedi onde esporre alla radiazione cosmica pacchi di emulsioni nucleari. Si sono messe a punto valvole a comando funicolare e si fa un confronto del comportamento dei palloni di gomma e di isoprene di differenti dimensioni. In alcuni voli un orologio liberava un peso dopo di che il pallone si era stabilizzato in quota e si è ricercato per questi la nuova quota di plafond.
References
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This research has been supported by a grant from the Nuffield Foundation.
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Laby, J.E., Lim, Y.K. & Hopper, V.D. Level flights with expansible balloons. Nuovo Cim 5, 249–259 (1957). https://doi.org/10.1007/BF02812832
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DOI: https://doi.org/10.1007/BF02812832