OCNG 251 Lecture Notes - Lecture 10: Tide Pool, Wind Wave
19 Oct 2016
School
Department
Course
Professor
Document Summary
Interesting critters liv in tide pools, classic ecology. Good model for life under changing conditions because they are exposed and submerged multiple times per day. Tide pools can be used as test beds for biogeographical models. Shallow water waves with huge wavelengths (thousands of km), but relatively small (in comparison) wave height. Known for ages, rst mentioned in writing about 450 bce, but nally understood when newton described the laws of gravity and how they relate to tides in 1687. Caused by gravitational attraction between earth, moon and sun. The earth and moon rotate together as a system around the sun. They rotate around each other, but the earth is larger, so it seems as though the moon rotates around it. The balance point, barycenter, is within the earth. The strength of gravitational attraction between two bodies. G = gravitational constant = 9. 8 m sec^2. M1 and m2 are the masses of two objects.
