Welcome


The title says it all: this blog features physics videos found everywhere on the web: animations, demonstrations, lectures, documentaries.
Please go here if you want to suggest other nice physics videos, and here if I mistakingly infringed your copyrights. If you understand French, you'll find a huge selection of physics videos in French in my other blog Vidéos de Physique.
Showing posts with label Gluons. Show all posts
Showing posts with label Gluons. Show all posts

Wednesday, 15 May 2013

Your Mass is NOT from Higgs Boson

The Higgs mechanism is meant to account for the mass of everything, right? Well no, only the fundamental particles, which means that electrons derive their mass entirely from the Higgs interaction but protons and neutrons, made of quarks, do not. In fact the quark masses are so small that they only make up about 1% of the mass of the proton (and a similar fraction of the neutron). The rest of the mass comes from the energy in the gluon field. Gluons are massless, but there is so much energy in the field that by E=mc^2 there is a significant amount of mass there. This is where most of your mass comes from and the mass of virtually everything around you.

 

Saturday, 17 November 2012

Quarks and gluons with an unsung hero: Professor Graham Ross

Professor Graham Ross from the University of Oxford, winner of the 2012 Dirac Medal awarded by the Institute of Physics for his work in developing the standard model of particles and forces that has led to many new insights into the origins and nature of the universe. A powerhouse of physics, and one of the UK's best kept secrets, Graham laid out the pathway to the discovery of the gluon, the force carrier for the strong nuclear force, and taught Richard Feynman how quantum chromodynamics could be used to work out the interactions between quarks and gluons.