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Titre: WWI, Barrage Balloons Defending London
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Barrage Balloons were lighter-than-air balloons that were flown over ships and buildings, as a protection against low-flying aircraft. The balloons were tied down by a very strong cable, so the balloon was quite large. In theory, any aircraft that dived too low to shoot or bomb a target would fly into this and crash.
Crédit: Album / Science Source / New York Public Library
Taille de l'image: 4200 × 2978 px | 35.8 MB
Taille d'impression: 35.6 × 25.2 cm | 1653.5 × 1172.4 in (300 dpi)