When there's an outburst of indignation about a stupid remark made by an elderly person, such as the furore over Tim Hunt's comments on women in the laboratory, it's easy to forget how much we have moved on in the last 40 or 50 years. We are yet to achieve proper equality for women, but it's easy to forget just how strikingly different things were just a few decades ago. Take, for instance, the issue of calendars. When I was young, every car part manufacturer and plumber's supplier produced an annual calendar with pictures of women in relatively few, if any clothes. Most of these were pretty horrendous productions, though some had pretensions of artiness, and none more so than the calendar produced by the tyre company Pirelli. These weren't the kind of thing that were plastered on the wall of garage workshops, but sought after collectors' items. But still, in the end, arguably objectification. (I admit the line between such things and art is fuzzy. It wo...