A Drop in the Ocean
Bildnummer 11651432
| Water drop falling into the ocean. The phrase 'a drop in the ocean' is a common metaphor for a very small amount in comparison to the amount that is needed. "A hundred thousand may seem a lot but it's a drop in the ocean compared to the millions that need to be spent". A phrase often used to discount the potency of homeopathic medicines. The water drop is held in a roughly spherical shape by surface tension. Surface tension is responsible for the shape of liquid droplets. Although easily deformed,droplets of water tend to be pulled into a spherical shape by the cohesive forces of the surface layer. In the absence of other forces,including gravity,drops of virtually all liquids would be perfectly spherical. The spherical shape minimizes the necessary "wall tension" of the surface layer according to Laplace's law. Photographed with high speed flash | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Parker, David |
| Bildgröße: | 5236 px × 6664 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
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