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General relativity from A to B Robert Geroch
Publisher: U.Chicago

Gravity Probe B Proves General Relativity Still Valid. Then devise a means to test that theory by designing an. The GP-B satellite was launched in April 2004 and collected a year's worth of data to determine if predictions of Albert Einstein's General Theory of Relativity are correct. This handsome image of Einstein himself came from art.com. Gravity Probe B has confirmed two of the most interesting effects predicted by Einstein's General Theory of Relativity. Note that Einstein explicitly used the equation c'=c(1+gh/c^2) in the period 1907-1915, then, in the final version of general relativity, replaced it with c'=c(1+2gh/c^2). €�The space-time around Earth appears to be distorted just as general relativity predicts,” says Stanford University physicist Francis Everitt, principal investigator of the Gravity Probe B mission. This problem is actually one assigned in the undergraduate general relativity course I took in the spring 2008. Seems very silly that people often cite the size of Earth/human beings in relation to the universe as a measure of each human's 'insignificance'. I finally understand Minkowski's metric for General Relativity (A*G + B*M)^2 +(E0)^2= (Et)^2 -(E')^2. If gravity did not affect space and time, Gravity Probe B's gyroscopes would point in the same direction forever while in orbit. The Minkowski metric for General Relativity.. Hartle's book Gravity: An Introduction to Einstein's General Relativity, chapter 6, problem 9. A few “test your understanding” questions: In what year did Albert Einstein develop and publish his Theory of General Relativity? For those unfamiliar with scientific endeavour, the goal is to develop a theory about something. Here the E's are the energies in the universe.