Quantum electrodynamics, commonly referred to as QED, is a quantum field theory of the electromagnetic force. Taking the example of the force between two electrons, the classical theory of electromagnetism would describe it as arising from the electric field produced by each electron at the position of the other.
Season 2. Season 4. Season 3 of Vikings premiered on February 19, 2015 on History in Canada and in the United States and concluded on April 23, 2015, consisting of 10 episodes. The new 10-episode season begins with...
The season finale will air on April 23. Luckily, if the last two seasons are any indication, weâll probably be seeing a 10-episode season next year. Vikings has been down in the ratings a bit during Season 3, but there are still well over 2 million viewers who tune in for each episode live. In addition, the show is the #1 scripted cable program in Live+3 ratings, averaging 4.3 million viewers.