Here are the answers according to Space.com.

1. What statement do Albert Einstein and Ford Prefect have in common?
   
   • 'Time is an illusion.'
2. What is Einstein's twin theory?
   
   • A twin travelling near the speed of light will age more slowly than the one on Earth.
3. What scientific instrument that you probably have in your car has validated both general and special relativity?
   
   • GPS
4. Why did Einstein say time travel, while possible, would be very difficult to survive?
   
   • You would have infinite mass and a length of zero, which is kind of hard on the system.
5. What is the main barrier to using wormholes for time travel?
   
   • We haven't found any yet.
6. What is the main obstacle to building a Tipler Cylinder for time travel, other than the enormous amount of mass needed?
   
   • A Tipler Cylinder is infinitely long.
7. In the film Primer, why is time travel so slow?
   
   • For every minute you go back in time, you have to stay in the time machine one minute.
8. In Madeleine L'Engle's A Wrinkle in Time, how is space/time folded?
   
   • By creating a tesseract.
9. How does the Doctor travel through time in his/her TARDIS?
   
   • By moving through a temporal vortex.
10. What is a 'time slip'?
    
    • A situation in which people claim to have experienced the past without a time machine.

Any more questions? Ask Doc Brown.

Turn backwards, turn backwards O Time, in thy flight.

Dmitri Gheorgheni

04.02.19 Front Page

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