Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

This article is certainly an interesting alternative perspective, but is it factual or does it contain fallacies?

Are mass and energy not convertible after all? Do photons really have kinetic mass?

Is it really fair to classify the energy stored in the nuclear strong force as "rotational kinetic energy"?

share|cite|improve this question
Helpful: – AlcubierreDrive Sep 24 '12 at 8:15
Purest nonsense; relativity denialism; utterly unable to deal with the simplest realities of particle experimentation. – dmckee Sep 24 '12 at 13:03
up vote 3 down vote accepted

If you collide two protons in the LHC you get lots of particles coming out of the collision, and the total mass of these particles is far greater than the mass of the two protons. So the LHC demonstrates the conversion of energy to matter every day.

share|cite|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.