The particles get a little kick in energy every time they cross the shock front, and eventually they get accelerated to these massive energies that we detect here at Earth.
First he bullocked his way up the middle to set up a try for Lipman, and then the England front rower's kick set up the position for Maddock to cross out wide.
Just two minutes later the Welsh were in for a second, this time through prop Thomas, after Morgan's cross-field kick found Luke Charteris in space and his basketball pass set the front-row on his way.