In September a furore erupted among physicists after it emerged that neutrinosdiaphanous particles which pervade the universe but rarely interact with anythingappear to be travelling faster than light. Since neutrinos are thought to have mass, and since Albert Einstein's special theory of relativity posits that accelerating any non-zero mass to the speed of light requires infinite energy, this implied that Einstein was not quite right. Either that, or the researchers who sent their neutrinos from
