Rhythm University... The Center

'The center was half the diameter.'

I can not really say if this is right, but wanted the old Greeks probably get to this conclusion or was it missing since than, or has one today.

For the reason I think scientists have to exclude all statements meaning a density it is. For structures which are not equally round I think it's of importance to have the idea there is a center. The structure normally would get forward into a round spherical shape.

Thus the definition of an circle that describes the circle as all the point's in the same distance around a common center is not correct. This definition will define a sphere, not a circle. I have just seen the definition at wikipedia.org stating 'the set of all points in a plane`.

I had it in mind differently. I did not remind the addition 'in a plane'. As I think if this can be being defined that way at all, it at least sets off a wrong imagination as thing's are real, cause the circle is not being in a plane. Therefore this definition would lead after the abatement of 'ìn a plane' furthermore to defining a sphere which than had to be considered as being right. This circle here again is in it's shape as circle in a pane not existent (as a natural being, and so, does not need to be defined)?

So one can not just the surfaces of the points comprehend as to be in the same pane. The undersurface would be furthermore the surface of the sheet of paper. The upper surface wave - like.