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

Is time slowing down or is it just taking a longer amount time?

  1. Nov 30, 2011 #1
    The faster you travel the slower time travels. But instead could we be thinking in terms of it taking longer for things to occur? A particle traveling near the speed of light will take longer to decay then at rest. A person traveling close to the speed of light will take longer to age, and the clock being worn will take longer to mark off time then if at rest.
  2. jcsd
  3. Nov 30, 2011 #2

    Doc Al

    User Avatar

    Staff: Mentor

    That's what time 'slowing down' means. (No need for the 'instead'.)
  4. Nov 30, 2011 #3


    User Avatar
    Science Advisor
    Gold Member

    Since you have to measure time with events (e.g. the ticking of a clock hand, the swing of a pendulum, the vibrations of a cesium atom, etc), there is no difference between "time slowing down" and "things take longer to occur".
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook