This juxtaposition is very painful: Why should it by problematic that the "intrinsic energy" has nothing to do with gravity, when the first part talks about the object's inertia? Where is the "contrast"? --[[User:AugustO|AugustO]] 08:34, 18 March 2015 (EDT) | This juxtaposition is very painful: Why should it by problematic that the "intrinsic energy" has nothing to do with gravity, when the first part talks about the object's inertia? Where is the "contrast"? --[[User:AugustO|AugustO]] 08:34, 18 March 2015 (EDT) |