Exact energy landscape of the oxygen atom (IMAGE) Trinity College Dublin Caption An illustration of the exact energy landscape of the oxygen atom, which takes the form of a tiled valley, as described by the quantum mechanical theory. Credit Dr David O'Regan, Trinity College Dublin. Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.