Later, as the months wear on, a series of additional messages arrive from Gerry -- always delivered in the most remarkable and surprising of ways. With each new message comes a new adventure, and each letter signs off in the same familiar way: P.S. I love you..
For a person standing at sea level, however, the horizon is only about 3 miles away. Lets do the calculations. The figure below shows an observer whose eyes are a distance E above sea level. A straight line drawn from the observers eyes tangent to the seas surface touches it at the distance d1, which is the distance to the horizon. If R is the radius of the earth, then, to first order in E/R, it is easy to show that.
What's more, scientists expect regional variations in sea-level rise to continue. So, for example, a two-foot (61.0-centimeter) rise in global sea level is likely to produce a relative sea-level rise of approximately 2.9 feet (88.4 centimeters) at Hampton Roads, the metropolitan area that includes Virginia Beach.