Relativistic Cosmology Illustrations

For David Rowe’s 2016 paper on the history of cosmology called “A Snapshot of Debates on Relativistic Cosmology” MO-Labs provided some images, and here in the internet you may view the corresponding animations:

Animation for figure 9:
Weyl’s foliation of de Sitter space containing
worldlines (in red) that spread out from a common source in
the in finite past:

Animation for figure 10:
The space-like sections are 3-planes that cover
only the upper-half of the manifold:

Animation for figure 9 (version with dark background):
Weyl’s foliation of de Sitter space containing
worldlines (in red) that spread out from a common source in
the infi nite past: