The Jules Verne Library

Five Weeks in a Balloon Chapter 10


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In which the learned doctor elucidates his ingenious apparatus for controlling the ascent and descent of his balloon by varying the temperature of the contained hydrogen gas, thus obviating the need for ballast or gas loss. With a detailed description of his calorifère and gas cylinder, he confidently assures his companions that this simple yet profound mechanism ensures both safety and efficiency for their aerial voyage.
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The Jules Verne LibraryBy Jules Verne