The Naked Scientists

The Naked Scientists Forum

Author Topic: If you travel faster than light, could you look back and see past events?  (Read 16532 times)

Offline yor_on

  • Naked Science Forum GOD!
  • *******
  • Posts: 12001
  • Thanked: 4 times
  • (Ah, yes:) *a table is always good to hide under*
    • View Profile
This type of definition is also a very strong argument for causality and logic being what defines a universe. It's no 'physical laws' per se, if interpreted as something locally measurable, that define a universe, but logic will do it, and with it, causality.

Offline jeffreyH

  • Global Moderator
  • Neilep Level Member
  • *****
  • Posts: 3931
  • Thanked: 55 times
  • The graviton sucks
    • View Profile
This whole topic raises an interesting point. As discussed when viewing the external universe we are looking back in time. The further away an object is the longer the light has taken to reach us. This includes any red shift we detect. So if this red shift is further back in time the further away the object is how does that reflect the history of the expansion of the universe?

The Naked Scientists Forum


SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums