xShadow zone : The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves. The shadow zone results from S waves being stopped entirely by the liquid core and P waves being b
Scientists are currently tracking the effects of the oil spill on the wetlands of the Louisiana coast. Robert Twilley and Guerry Holm, scientists from Louisiana State University (LSU), want to learn about...Read more