Please make sure you play the Video before clicking the links below.
- Special Relativity Review
Brief summary of material covered in first two sessions, with focus on comparing relativistic properties to invariant properties.
- Time Travel to the Future
Method for traveling through time into the future as allowed by special relativity. Actual "time traveling" experienced by astronauts due to time dilation.
- Time Travel to the Past
Possibility of traveling through time into the past. Development of general relativity by Einstein. Equivalence principle, gravity, and acceleration.
- Mass and Spacetime
Curvature of spacetime due to mass and resulting effects. Gravitational time dilation. General relativity and motion. Movement of objects to extremize time.
- Black Holes
Definition of a black hole in terms of Newtonian mechanics and general relativity. Properties of black holes, including singularity, infinite curvature, infinite density. Evidence of the existence of black holes.
Prediction of wormholes by general relativity. Definition of a wormhole. Method for traveling through time into the past by combining wormholes and special relativity.