Circle of latitude can be calculated by a common sine or cosine function. The 60th parallel north or south is half as long as the Equator (disregarding Earth's minor flattening by 0.3%). A circle of latitude is perpendicular to all meridians. The latitude of the circle is approximately the angle between the Equator and the circle, with the angle's vertex at Earth's centre. The equator is at 0°, and the North Pole and South Pole are at 90° north and 90° south, respectively. The Equator is the longest circle of latitude and is the only circle of latitude which also is a great
What to the Slave Is the Fourth of July? that slavery could be eliminated with the support of the church, and also with the reexamination of what the Bible was actually saying. You profess to believe, "that, of one blood, God made all nations of men to dwell on the face of all the earth," and hath commanded all men everywhere to love one another; yet you notoriously hate (and glory in your hatred) all men whose skins are not colored like your own. Douglass wants his audience to realize that they are not living up to their proclaimed beliefs. He talks about how they, being Americans, are proud