CONCERNING BALLOONS.
Sin, —Oil page 35 of " Tlis liomance of tlie Sky," by C, J. Griffith, wo we (old tliat " cold uir is lighter than hot." Oil what law of Nature, then, docs tlio parachutist depend when ho fills his balloon with hot air previous to making his ascent?— I am, etc., Ignoramus. February 11.
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Bibliographic details
Otago Daily Times, Issue 14447, 13 February 1909, Page 10
Word Count
55CONCERNING BALLOONS. Otago Daily Times, Issue 14447, 13 February 1909, Page 10
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