Hot air balloon experiments, illustration. Two men holding a large bag over a fire, trapping the hot air in the bag to make it rise. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / DK IMAGES |
Taille de l’image : | 3800 px × 2558 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |