FEers always talk about these things that are unexplained by RE, but I can't think of any. What are they? Keep in mind this does NOT include things that aren't fully explained in both theories, such as gravity. Gravity exists, we don't totally understand it, but we can show that it exists regardless of the shape of the Earth, so it's not relevent here. I only want things that don't have an explanation with RE but supposedly do have an explanation with FE.