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  • Spherical Weather Balloon Filled with Hydrogen

Spherical Weather Balloon Filled with Hydrogen

以氢充球记
古之欲探天象者,常赖一物,其形圆如球,以氢为内充,名之曰“以氢充之圆气球” 。盖氢者,质轻于常气,性浮于空。

匠人制球,先取坚韧之材以为囊,其质可承氢之胀满,且御风而不破。囊既成,乃以法导氢入内。氢入囊中,球渐鼓胀,如孕生机。

待球饱充氢气,系以长索,索端或系诸般测天器具。器具精巧,可测风云之变、温湿之异。时人执索,择空旷之所,松手放之。球遂扶摇直上,入于云霄。

观其升空,悠悠然如飞鸟之翔,渐远渐小,终隐于天际。人望之,冀其携回天象之秘,以助知天时、晓阴晴,于农桑诸事皆有益焉。



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James Jiang

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