 Well, there were essentially two very eminent metallurgists, Markham, John Goldack and Markham Bibby, who worked together. But their main specialty was welding. They, in fact, built a very advanced electron beam welder at Carlton, which I've been successful with for many years. Eventually they closed that down to me. I remember for 20 years or so. So there was, there were really only two metallurgists at Carlton, but they were both first grade. And they did a lot of collaborative work with atomic energy and people like that. In fact, John Goldack is still active at Carlton. He's a year younger than me. But he's still very active on the research side and has a major research experience. And I went the opposite way. I wanted to invest myself in research for the entire time. I still work with students in teaching sense, but I didn't want to be in the search where I couldn't go away and meet my graduate students. Tell me, what else would be going on in the metallurgical research at Carlton? But the main thing that comes to mind, certainly, is welding. And that we would have said to the Excellency in that view.