A sequence of large to small tea stains left to dry on a white ceramic plate. The edge of each stain is darker because there is more surface area for evaporation to take place than in the middle. The sediments migrate to the edge,they become more concentrated and the edge becomes darker. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / RICHARD GERMAIN |
Bildgröße: | 5345 px × 3601 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |