Tears of Water,Wine,and Whiskey
Numéro d’image : 12030996
| Comparison of the appearance of 'tears' of water (left),wine (centre),and whiskey (right). The phenomenon manifests as a ring of clear liquid,near the top of a glass,from which droplets continuously form and drop back in. It is most readily observed in a liquid which has a high alcohol content. The effect is a consequence of the fact that alcohol has a lower surface tension than water. If alcohol is mixed with water inhomogeneously,a region with a lower concentration of alcohol will pull on the surrounding fluid more strongly than a region with a higher alcohol concentration. The result is that the liquid tends to flow away from regions with higher alcohol concentration. This can be easily and strikingly demonstrated by spreading a thin film of | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Winters, Charles D. |
| Taille de l’image : | 5460 px × 3042 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : |
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