In the engineering program at my old university, there is a mandatory course on engineering drawing. Of course there's a CAD component, but mainly it teaches 3-D visualizing, and mostly we drew stuff by hand. Not only that, but they taught us how to draw straight lines freehand; no rulers were allowed. At the time, I was so good that I was accused of using a straight edge when really I hadn't.
Of course, none of that is doable when it's 3 degrees Celsius with powerful gusting winds, you're up 80 ft in the air on a steel tower, your hands are frozen, and, not only is your paper blowing all over the place, but your paper is soaked all the way through because it's snowing. In the middle of April.
On Monday, me and our company's senior steel engineer went to this aggregate processing plant (aggregate in this case meaning the sand and gravel that help make up concrete), an example of which is shown to the right (but this is not the one we went to). Of course, we weren't expecting the weather to be that bad. Also making matters worse, I wasn't exactly told where we were going and was under the impression that we were going to someplace indoors, rather than 80 ft up in the air on an exposed tower.
So after almost getting hypothermia and being left with near illegible notes, it is now Thursday and the weather is great. It's warm (relatively), sunny, and not very windy. The lesson here? No more outdoor site visits with that steel engineer.