earticle

영어

Special relativity gives two energy equations. One is the energy scalar equation about total energy, poten-tial energy and kinetic one integrated along the force direction. The other is the vector magnitude equation about totalenergy, potential energy and momentum energy. The two energy equations suggest that total energy, potential energyand kinetic one are all vectors and also the potential energy contains positive mass and negative mass at the same time.We can find the negative mass around us without particular attention if you have a measuring device.