There were four of us, and we worked in 12-hour shifts so that there were always two people at any given time on the beamline. We staggered it so there’d always be one person who was tiring and one person who was fresh because we could not afford to make mistakes because we were in this tight competition.  So at the end of it, we had to do a quick calculation to see if the experiment had worked.  I remember one of us had made a slight mistake in the calculation and there’s no signal there at all.  And I thought, “Oh my God, we’re just really out of it now!”  But then I noticed that there was a slight mistake, and I redid the calculation and this huge signal — these peaks popped out.  We were all exhausted.  First of all, we had come from England to Chicago and then, working around the clock with no rest, and we were just exhausted.  At the end of it, to know that it had worked, it was just all too much.  I’m not such an exuberant guy, normally, but I couldn’t help it.  I just got up and started dancing around the room, saying, “Guys, we’re going to be famous!”  And actually, every one of them did very well.  The graduate student who came with me from Utah, he’s now a professor at Caltech.  All of them are doing very well.