one of the most famous equation by einstein is E=mc² which states that energy is equal to mass. energy is taken in joules whereas mass is considered in kilograms. if we have to relate them we have to relate them with some factor. in this equation the factor is square of the speed of light. this is a strong equation that tells anything which has mass has a great source of energy. in non relativistic physics the kinetic energy of the object of mass ‘m’ having a velocity ‘v’ is KE=½mv². but as soon as velocity increases with relative to speed of light equation changes to more complicated term E=mc². but this equation is still incomplete. actually einstein was little bit wrong about predicting the energy of moving object in relativistic terms. he actually predicted the energy of a mass at rest relative to the observer(also known as the proper mass). the actual equation is:
E²=m²c4+p²c²
where ‘p’ is the momentum of a body having mass.
E=mc² itself is a broad concept and describes most of the physics phenomena and mechanism at quantum level. if we take all the mass of the particle in together and compare it with the masses of sum of every single particle mass drops. mass drops due to binding energy of these particles which can be given by E=mc². if we take the under root of energy of masses at motion then we come with negative energies that is with energy of anti matters.
its so amazing that how physics describes the very beauty of the nature…..
PHYSICS SAGA 