Robert brothers helping JAC Charles (1746-1823) to inflate balloon with hydrogen produced by covering barrel of iron filings with sulphuric acid. On 1 December 1783 Charles and one of brothers made first ascent in hydrogen balloon. Engraving c1807.
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Details
Creative#:
TOP29589855
Source:
達志影像
Authorization Type:
RM
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須由TPG 完整授權
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no
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