Some surgeons are injecting tiny amounts of silicone oil into the lips to plump them. A few types of silicone oil are approved for injection into the body, but others are not, and none are approved for cosmetic use.
Figure 10c-2: Sir Charles Lyell, 1797-1875. The theory of uniformitarianism was also important in shaping the development of ideas in other disciplines. The work of Charles Darwin and Alfred Wallace on the origin of the Earth's species extended the ideas of uniformitarianism into the biological sciences.
Principals of Uniformitarianism are as follows: 1. Developed by studying the geological record. 2. present is the key to the past. 3. laws of nature are constant. 4. geological processes are constant. 5. understanding the geological past can be found by studying geology today. 6. past and present causes are of the same kind and produce the same effects.