EntityQ1326936· pop 5· linked from 30 articlesElectromagnetic massSign in to savephysical conceptConnectionsAlbert EinsteinPersongravityEntityquantum mechanicsEntitymassEntityelectronEntityEnrico FermiEntityInternational Standard Book NumberEntityJames Clerk MaxwellEntitymatterEntityvelocityEntityspeed of light in vacuumEntitykelvinEntityNewton's laws of motionEntityclassical mechanicsEntityHenri PoincaréEntityspecial relativityEntitygeneral relativityEntityelectric chargeEntityPaul DiracEntityJ. J. ThomsonEntityCategoriesObsolete theories in physicsSpecial relativity