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.
(James Hutton, 1785) Hutton based the theory of uniformitarianism on the slow, natural processes that he observed on the landscape. He realized that, if given enough time, a stream could carve a valley, ice could erode rock, sediment could accumulate and form new landforms.