Ralph had an ongoing fascination with engineering disasters and the analysis of what went wrong, particularly from a human perspective. Large disasters typically have multiple causes, some of which can be quite subtle and stem from the patterns people get into by cutting corners when they are rewarded for efficiency or cost-savings rather than safety.
Forthcoming content includes course slides from a class that Ralph taught entitled "No Reward for Safety" and possibly some other writings as they come to light. In the mean time, the management would like to apologize for the slow addition of content, but we are too busy attempting to keep our 8-month-old from eating the coffee table.