Ronn!Blankenship wrote: > >The normal direction of rotation is in the sense that the spiral arms would >seem to be winding up tighter, e.g.: > > > <��� > > /����������\ > / \ > | /�����\ > | | | > | \_��\ | > \ | | > \____/ | > \ / > \________/ > > > ���> > Ok, so that's what my intuition would say, as if the spiral arms were lines that got distorted.
> >(Try looking at that in a fixed-width font.) > (did :-). ) >However, there's at least one spiral galaxy which apparently rotates >"backwards": ><<http://www.jpl.nasa.gov/releases/2002/release_2002_33.html>> > !!! > >> [I guess the spiral arms would rotate faster >> closer to the center] > > No! > No? The only way they could rotate angularly faster in the borders was if the density of matter increased with the distance from the center. ><<http://aether.lbl.gov/www/projects/neutrino/agn/rotation_curve.html>> > >In fact, the fact that the rotation curve is nearly flat is one of the main >reasons astronomers must assume the existence of dark matter: > Rotation in angular speed or linear speed? > >Disclaimer: Unless specifically stated otherwise, any opinions contained >herein are the personal opinions of the author and do not represent the >official position of the University of Montevallo. > Chicken!!! Can't you put an <ex-cathedra> before and another </ex-cathedra> after to show that you are infallible? :-))))))))) Alberto Monteiro _______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l
