LSU and MIT Physics Professor Rainer Weiss on winning the 2017 Nobel Prize for his work with the Laser Interferometer Gravitational Wave Observatory in Livingston Parish. A discovery in September of 2015 confirmed a major prediction of Albert Einstein’s 1915 theory of relativity.    Thomas Kochan, Professor of Work and Employment Research and Engineering Systems at MIT, comments on disparities between low income and high income individuals.    Author Steven Johnson discusses his latest work, Wonderland: How Play Made the Modern World.