A young boy uses a large mirror to concentrate solar energy to cook a marshmallow. The boy holds the marshmallow exactly at the focus to concentrate all the light energy. sunlight | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Kinsman, Edward |
Taille de l’image : | 4500 px × 3000 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : |
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