Aeronautics: the ascent of the 'Polar Star' balloon in 1874. To combat respiratory problems encountered at high altitude, the two aeronauts fitted balloons containing oxygen and inhaled through the mouth using a rubber hose. Engraving in 'Le Monde Illustré(Aeronautics: the ascent of the “Polar Star” balloon in 1874. To combat respiratory problems encountered at high altitude, the two aeronautics fitted balloons containing oxygen and inhaled through the mouth using a rubber hose. Engraving in “” Le Monde Illu)French School |
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Undated · Engraving
· Picture ID: 923689
engraving · black and white · engraving · transport vehicle · french · balloon · invention · france · aerostat · bianchetticor · 19 · Private Collection / Bridgeman Images |
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