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Gravity: an introduction to Einstein's General Relativity James B. Hartle
Publisher: Benjamin Cummings

It also turns out that no experiment can tell the difference between floating motionless in deep space and accelerating under the pull of gravity (when you fall you're weightless). Sep 8, 2010 - General Relativity - Hartle-Ch1 General Relativity - Hartle-Ch2 General Relativity - Hartle-Ch3 General Relativity - Hartle-Ch4 General Relativity - Hartle-Ch5. While Newton thought of But Einstein went even one step further. To discover how we as engineers (or other interested people) may interpret Einstein's very brief "answer", here are two links that tell the story:. Albert Einstein provided The theory departs from Newton's ideas, however, once masses are introduced. Nov 28, 2011 - How do you explain “conformal gravity”? Jun 19, 2012 - Artist's concept of warped spacetime, with NASA's mission Gravity Probe B. Sep 29, 2010 - Einstein showed that the presence of gravity affects geometry by warping space and time. May 2, 2014 - When it comes to "quantum gravity" theories that seek to reconcile quantum mechanics and general relativity, there are currently two main scenarios. May 6, 2011 - There are many news article on the latest report from Gravity Probe B stating how the results are consistent with predictions from Einstein's General Relativity (see here, here, and here). When you boil it down, it is very similar to Einstein's general relativity, but with some new ideas that guide the physics at the largest of scales. May 4, 2011 - Gravity Probe B was launched in 2004 to test Einstein's theory of general relativity. Dec 19, 2006 - Stated differently, general relativity reduces to special relativity in the case of negligible gravity. For the non-physicists in the crowd, this was the change to gravity that Einstein introduced. General Relativity You'll notice that the basic premise of General Relativity is that spacetime is a smooth, gently curving, geometrical entity that allows us to follow all of its matter-driven undulations. If they do that in a way that's not subject to the basic description of light, then we need a better field theory that includes electric and magnetic fields within the same bending of space-time as general relativity. Einstein's stunning insight (paraphrased) was “dudes! May 11, 2014 - There's special relativity.