Keratosis polaris or pilaris usually affects the back of the upper arms, the thighs, and the buttocks regions. It can also appear on the face and can be misdiagnosed as an acne problem. It is more common in teenagers than any other age group, but infants and older individuals may also experience this type of keratosis.
In regions that have had the time to reach isostatic equilibrium without being disturbed by other geological effects, such as the south-western United States, very good correlation exists between the local elevation and Bouguer gravity anomalies, providing compelling evidence for isostasy [4].he waxing and waning of ice sheets, erosion, sedimentation, and extrusive volcanism are examples of processes that perturb isostasy. The physical properties of the lithosphere (the rocky shell that forms Earth's exterior) are affected by the way the mantle and crust respond to these perturbations.
Originally published in Creation 3, no 3 (August 1980): 29-32. PiÃ¨rre Simon Laplace is famous for his concept that the solar system formed from a spinning cloud of gas. His theory is the combined result of a manâs philosophy, religion, and skills as an observer of the skies. It is important in looking at the Nebular Hypothesis that we understand something of the background of Laplace. In 1749 PiÃ¨rre was born to a middle class family in Beaumont-en-Auge, France.