Search PBS Space Time
What are you looking for?
2019-04-03: The Edge of an Infinite Universe
: Those circle segments represent the straight lines of a
projected onto the disk.
2017-02-15: Telescopes of Tomorrow
is just what you did when you map the space-time interval to a third dimension.
2016-11-16: Strange Stars
: ... space will definitely have weird angles, less than 180 degrees for a
more than 180 for a spherical ...
3 result(s) shown.