Anti-Atom Falling Up or Falling Down?

[摘要] Using an imaginary experiment of atom and anti-atom system annihilation around the earth, I find that the anti-atom should be 5 times as heavy as atom if I assume General Relativity correctly describes the gravity between matter, light and the earth.

[关键词] Anti-atom;Gravity;General relativity;Atom-anti-atom annihilation