One of the more memorable—and unique—illustrations about rest, involves a 19th century British politician named Samuel Plimsoll. The advent of insurance in the 19th century, created an incentive for ...

I’m guessing you have all seen a Plimsoll line, even though you may not know it. The images accompanying this column show what it is and where you might find it. The Plimsoll line is a critical point ...