By JAN TREFFER THOMPSON UNK Communications Inside a University of Nebraska at Kearney laboratory, two chemical elements have just become tungsten selenide. Argon that surrounded the reaction has just been purged from the container. It’s time for a heat treatment. Later, scientists will check the compound’s composition in a Raman spectrometer and use an x-ray diffractometer to test its crystalline structure. If all the crystals are oriented in the same direction, the compound’s electrons … [Read more...]