chimie (2) Chemical warfare (2) Materials (2) Chemistry (2) Materials (2) monde (1) puits (1) projet de recherche (1) papier (1) cartographie (cartes) (1) lumière (1) information (1) analyse (1) émission (1) comparaison (1) point (1) pixel (1) méthode (1) Saint-André (1) Color (1) Development (1) Context (1) Comparison (1) Selection (1) Methods (1) Identification (1) Antiquities, Prehistoric (1) Inorganic compounds (1) Work (1) White (1)