Reference Frames videos and discussion of time travel and warped space

The coolest old documentary on reference frames physics ever!

Part 2 of the coolest old documentary on reference frames physics ever!

Mr. P from Flipping Physics explains and shows how velocities and accounts of motion depend on the reference frame

Henry from minutephysics explains how to time travel

Henry from minutephysics explains the theory of special relativity

Henry from minutephysics explains how general relativity causes the clocks on GPS satellites to run differently