Was having a great conversation with a friend when I brought up how light could have force but not mass.
The conversation started with how we could not observe electron states due to the Heisenberg Uncertainty Principle and then my friend told me that we tried using a massless particle in order to observe the positions and velocities of an electron to no avail, they interacted with the electron during observation. That got me thinking that that light might have mass. It’s proven that black holes emit such strong gravity that even light cannot escape its pull, but for something to be influenced by the pull of gravity it has to have mass doesn’t it? F must equal m and a in Newtonian physics. So doesn’t that mean that light has mass, but just not any mass observable by current technology?
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It doesnt make sense in classical mehcanics, and that is exactly why we have Quantom mechanics to explain the wierd behaviour of the particles,
And Special Relativity to explain gravity and light.
According to SR, gravity isnt a force, but a curve in space time (simply, when the surface is curved the lines that go through it are also “curved” so they can come together).
Because of that, anything that moves can be affected by gravity, since it is not a force.
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