Someone posted this animation in a previous discussion and I just 'rediscovered' it in my notes: http://www.adamtoons.de/physics/gravitation.swf Do you experts think it accurate, and if so, wouldn't this be a nice tool to display coordinate time versus proper time?? [Is it worth explaining it in FAQ and linking to it??] [I have found I like it better than these: Here are two others which have been linked in various discussions: I find this one difficult to divine.... http://www.physics.ucla.edu/demoweb..._and_general_relativity/curved_spacetime.html This one always semmed more intuitive showing geodesics which would be nice to display on the adamtoons format.... http://www.relativitet.se/spacetime1.html ] back to the animation 'adamtoons'....... In the left chart I can see why the coordinate time [stationary at the origin to the left, tallied in the blue circle] runs faster the the proper time [purple] since the clock aboard the moving object apparently runs closer the the 'spherical' mass...assuming relative speed of the proper clock is ignored....why is the spherical mass pictured as an ellipsoid?? In the right hand chart, I believe that the greater curvature of the proper time relative to the curvature of the distance curvatureis a nice illustration of why 'usually time is more warped than space' absent singularities... How would you describe the 'distance' curvature which is not depicted in the left hand chart?.....I would have tended to roll up the left chart and forgotten entirely about SPACEtime curvature since it wasn't depicted in the left chart.... Apparently this preserves distances [the metric] as described on the illustration?? Just what does this mean?? Thanks.