Summer School 2012.7: Gravity August 17, 2012 We are now, finally, prepared to examine the effects of gravity on the shape of the universe, starting with Einstein’s postulates. As always, the lesson can be viewed with or without the related math. Share this:Click to share on Facebook (Opens in new window)Click to share on Mastodon (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)