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hawksmere

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  1. hawksmere

    leaks at the LHC were to raise awareness? James Gillies denies but CERN have certainly got people talking. descuss...

    1. ajb

      ajb

      Post in the main physics board if you want to get a discussion going.

  2. hawksmere

    If one was on a plane, which was travelling at say 700 m.p.h and walked from the back of the plane to the first at say 3 m.p.h are they then travelling at 703 m.p.h??

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    2. LiquidMentality

      LiquidMentality

      Correct, relative to the ground, you would be travelling at 703 mph. However, relative to the plane, you would be travelling at only 3 mph.

    3. hawksmere

      hawksmere

      so if in a super space shuttle travelling at the speed of light, relative to the universe, not the vehicle. would the person be travelling quicker then the speed of light?

    4. ajb

      ajb

      You cannot simply add velocities in truth. When the speeds are near the speed of light you need to use the relativistic addition formula. The astronaut will always be measured to be travelling <c by any inertial observer.

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