Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I Speed of Light and magnetic fields

  1. Dec 11, 2017 #1
    If the speed of light is ~300 m/s in a vacuum, can the electric and magnetic fields of the wave be condensed such that it travels faster? The idea being that an outside force condenses these fields and lenghtens the wavelenght with no loss of energy thus increasing the directional speed. The medium would not be a vacuum but something else.
     
  2. jcsd
  3. Dec 12, 2017 #2

    Ibix

    User Avatar
    Science Advisor

    The speed of light is 300 million meters per second in vacuum. Its speed is invariant, and anything travelling faster than light leads to causality paradoxes. So no, you can't make light travel faster than light.
     
  4. Dec 12, 2017 #3

    fresh_42

    User Avatar
    2017 Award

    Staff: Mentor

    In a medium the speed of light is less than in a vacuum.
    ... which answers the question. However, the invariance of the ##c## is the origin of special relativity theory which is about all other movements.

    As the answer is no and everything else is fantasy, this thread will be closed.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook