Wick Haxton, professor of physics at the University of California, Berkeley, and Phi Beta Kappa Visiting Scholar at UNH, will peer back to the first instants following the Big Bang to discuss “The Origin of the Elements” in a public lecture Thursday, Oct. 18, 2012. The lecture, at 4 p.m. in Parsons N104, is co-sponsored by the physics department and the UNH Beta of New Hampshire chapter of Phi Beta Kappa.