0390002729
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. After a contemporary engraving.
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- Irish Photo Archive
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- 2954x4500 / 4.2MB
- Contained in galleries
- historical photos 2
