1. Time Travel
By Keathley

2. The idea of time travel
 Albert Einstein
 Theory of relativity
 E=mc2,
true or FALSE!
 Time dilation
 Many scientists today

3. What is time travel?
 Moving in time
 Travel into past
 Travel into future
 Time dilation involved (Theory of relativity)
 Leave the present
 Slow time or speed it up
 Bending space time

4. Has time travel been
achieved?
 Future achieved
 Go 99.99% speed of light for future or…
 Orbit in space for future
 Faster then light for past
 Look into milky way for past

5. Is traveling into the past
easier then the future?
 Milky way is past
 Can’t change past
 Grandfather paradox
 Future travel achieved
 Past unachieved
 Impossible to go faster then light (for past)

6. Do you believe in time travel?
 Some scientists do
 Some scientists don’t (Du Shenwang, assistant
professor)
 Future travel more probable
 Future has been done
 Harder for past
 Many ideas to travel

7. Spacetime vs. earth time
 Matter bends space time
 Earth drags spacetime
 Spacetime is 4th
dimension
 Faster you go, space time slows (time dilation)
 Spacetime is relative
 Space and time mixed

8. Different ways to travel
 Black holes & white holes
 Cosmic strings
 Wormholes
 Time dilation
 Kerr holes (Like black holes)
 Time machine

9. Conclusion
 Time travel into future is possible, according to
Albert Einstein and others
 Future, yes… past… not yet
 Some people believe in it, some don’t
 There are many theories to travel in time
 Spacetime is involved
 Time travel is going on around you

10. Conclusion
 Time travel into future is possible, according to
Albert Einstein and others
 Future, yes… past… not yet
 Some people believe in it, some don’t
 There are many theories to travel in time
 Spacetime is involved
 Time travel is going on around you