Global and Local Effects of Rotation: Observational Aspects
  In the paper we discussed the observational aspects of rotation in the
Universe on different scales. We show dependence between the angular momentum
of the structures and their size. The presented observational situation is that
the galaxies, their pairs and compact groups have a non-vanishing angular
momentum. In the structures of mass corresponding to groups of galaxies, this
feature has not been found, while in the clusters and superclusters alignment
of galaxy orientation has been actually found. Also we know that galaxies have
net angular momentum due to the fact that we actually measure the rotation
curves of galaxies. These facts lead to the conclusion that theories which
connect galaxy angular momentum with its surrounding structure are at some
extend favored by data. We show that in the light of scenarios of galaxy
formations this result could be interpreted as an effect of tidal forces
mechanism, but it is also consistent with Li's model, in which galaxies form in
the rotating universe. The theoretical and observational aspects of possible
global rotation of the Universe were discussed as well.
