IFT researcher Álvaro de Rújula explains the relation between mass and energy!

Don't miss our vídeos, just SUBSCRIBE! It's FREE!
https://www.youtube.com/user/IFTMadri...

Follow us in TWITTER!   / ift_uam_csic  
and in FACEBOOK!   / 444787088891187  
and check out our webpage https://www.ift.uamcsic.es

Have you watched our LAST VIDEO?
   • Quasars, Blazars y Núcleos Galácticos...