Mass, speed

  • Thread starter jayaramas
  • Start date
  • #1
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do all mass less particles travel at the speed of light?
 

Answers and Replies

  • #2
Doc Al
Mentor
45,051
1,364
Yes.
 
  • #3
4,239
1
Yes.

Why?
 
  • #4
5,601
40
Why?

PHRAK.....Stop teasing Doc Al!!

Best answer I know: that's what we observe.
 
  • #5
4,239
1
But I was just getting started...

First we have "particles" and they're "moving", and this is supposed to be physics 200 years after Newton.
 

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