Geocentric model the coordinate system in order to predict the motions of planetary bodies, though doing so may make calculations easier to perform or interpret. A geocentric coordinate system can be more convenient when dealing only with bodies mostly influenced by the gravity of the Earth (such as artificial satellites and the Moon), or when calculating what the sky will look like when viewed from Earth (as opposed to an imaginary observer looking down on the entire solar system, where a different coordinate system might be more convenient). The Ptolemaic model of the solar system held sway into the early modern age;
What Would the Founders Do? What Would the Founders Do? What Would the Founders Do?: Our Questions, Their Answers is a 2006 non-fiction book by American journalist and historian Richard Brookhiser. The author discusses the viewpoints, backgrounds, and character traits of the American Founding Fathers and compares and contrasts them with the socio-political debates of present-day Americans. Brookhiser states, "We can be as intelligent as they were, and as serious, as practical, and as brave." The book was published by Basic Books. Some of the issues detailed include the death penalty, gun control, censorship, assisted suicide, preemptive war, Indian casinos, campaign finance reform, and term