How can gravity and the quantum world be unified? What are the different string theories? And what is "M theory"? All these answers in 17 minutes! 0:00 - Introduction 3:03 - Supergravity 4:40 - Superstrings 6:59 - A link between theories 8:35 - Dualities 13:34 - Towards M theory... This video is narrated by Octave Masson. For more videos, subscribe to the YouTube channel : null And if you liked this video, you can share it on social networks ! To support me on Patreon : http://www.patreon.com/ScienceClic or on Tipeee : http://tipeee.com/ScienceClic Facebook Page : http://facebook.com/ScienceClic Twitter : http://twitter.com/ScienceClic Instagram : http://instagram.com/ScienceClic Alessandro Roussel, For more info: http://www.alessandroroussel.com/en _________________________________________________ ScienceClic Français : null ScienceClic Español : null _________________________________________________ To learn more : https://en.wikipedia.org/wiki/M-theory