Gauge symmetry is a clear, direct idea in EM, as I will detail. This property is essential, [correction: due to redundancy found in the 4-potential description of light and not any issue of the speed…

I would like to signal an interesting article I have found on the web: Brian Cox is wrong: blogging your research is not a recipe for disaster - by Sarah Kendrew I tend to agree with Sarah, but I…

Neutrinos were first postulated in 1930 by Wolfgang Pauli, who won the 1945 Nobel Prize in Physics. “I have done something very bad today by proposing a particle that cannot be detected,” Pauli wrote…

These days I am preparing a three-hour course of statistics for particle physicists which I will give at a winter school in a couple of months. This stimulating task forces me to find nice and simple…

My recent article  on the relationship between Einstein's Theory of Relativity and superluminal neutrinos has triggered a series of comments. Some of them were reasonable, some others not. Among…

This is a continuation of "As is well known about elliptic trajectories" where I have put it as a sort of homework to find out which force fields support elliptic trajectories. The "problem" has…

Chinese researchers have created a hypothesis for a quantum cloning machine able to produce several copies of the state of a particle at atomic or sub-atomic scale, or quantum state, which if…

The Arxiv today features a quick-and-dirty study of the occurrence of electron-positron pair signal in the NOMAD detector, which obtains very strong bounds on the superluminal behaviour of energetic…

Scientists in Australia are claiming that the laws of physics might be like local by laws which vary from one location to the next and that if this is true then Einstein’s relativity may also be…

In a recent study, scientists used simulations to model the behavior of a closed, granular system comprising a chain of equal-sized spheres that touch one another and are sandwiched between two walls…