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I have some questions that I'm not sure about to do with this equation. I may just be missing something obvious but would be nice to get an answer nonetheless..

First is to do with the LHC. My understanding is that they are colliding particles at such force that they break down into particles that can't be observed as they are without mass. But the energy needed to make this happen is immense, yet the result has no mass. Doesn't this defy the fact that energy=mass?

The other question is... There is no state of rest, all is relative. So when we measure the speed of light in a vacuum, it's still relative to the speed at which we move... The closer you are to the speed of light, the slower you'd see light as travelling, so if you were to use e=mc2 on your own mass, then the speed of light will have reduced relative to your increase in energy, so the result would come out exactly the same? Or am I missing something really obvious here....

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# Questions about E=mc^2

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