654
The speed of light (mander.xyz)
submitted 5 months ago by to c/science_memes@mander.xyz
123 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[–] 3 points 5 months ago (2 children)

They have momentum, not mass, in relativistic physics you need something more complex than p=mv to describe momentum.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •
  • [–] -4 points 5 months ago (1 child)

    Energy=mass always. Theoretically you can make a black hole out of light, or you can turn that photon energy into inertial mass by running light in a closed loop.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 1 child comment
    •