Why do we prefer clockwise? Is it because we're in the northern hemisphere — that is, does it have to do with clocks, which were modeled on sundials? And was clockwise a concept (and a preferred direction) before we had the word "clock," and if so, what there a word for it?
What about the way lids and screws and things are designed to be turned clockwise to tighten? Is that related to clocks or to the fact that most of us are right-handed and right-handed people are stronger turning things clockwise and it's more important to have strength to tighten than to loosen? Ever notice that left-handed people are good at opening jars?
Or do you think the preference for clockwise is related to our left-to-right writing system, and clockwise is really a matter of going from left to right? Or does our writing system go left to right because of: 1. The direction of the sun, or 2. The fact that most of us are right-handed?
The answers to most of these questions are in the Wikipedia article "Clockwise."