spectacle (1) protocole (1) séparation des masses (physique) (1) laboratoire (1) datation (1) chimie (1) Context (1) Chemical warfare (1) Dating (1) Antiquities, Prehistoric (1) Rich people (1) Mortars (1) Mortar (1) Prehistoric peoples (1) Laboratories (1) Fractions (1) Chemistry (1) Carbon--Isotopes (1) Addition (1) Optically stimulated luminescence (1) Separation (1) optoluminescence (1)