This category has the following 2 subcategories, out of 2 total.
Pages in category "Time travel"
The following 19 pages are in this category, out of 19 total.
- Time travel (physics)
- Book:Time travel (physics)
- Serguei Krasnikov (biography)
- Novikov self-consistency principle (computing)
- Quantum mechanics of time travel (physics)
- Roman ring (astronomy)
- Wormhole (physics)