Four-dimensional travel

Author: R. L. Pravda
Publisher:
Publish Date: 2005-05-01
Features: Time and space are the fundamental characteristics of our experience and also the greatest mysteries of our existence. Does time have a beginning? Is there space beyond the universe? If all movement ceases, will time continue? Can space exist in complete emptiness? Is time travel possible? Are there multiple parallel universes? Can time flow backward? Does space have a fourth dimension? Are space and time merely products of our minds?