Lever balance. When a mass is placed on the pan,it exerts a downward force (weight). This force is transmitted via the system of levers to the counterweighted pointer. The size of the force determines how far the pointer is raised and the mass of the object (in grammes) is read off the scale | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Bartel, Alex |
Taille de l’image : | 4476 px × 3111 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |