I was doing a winter mountaineering course in Scotland (not as epic as it sounds, but damn fun!). We had some pretty gnarly weather, and were practicing navigation in a whiteout. It’s pretty easy to lose your sense of direction, there’s no landmarks, no reference for what is straight ahead. So the lead person was trudging along, looking down at the compass, following a heading, trudging off into the blank whiteness in a straight line. Every now and then, they would start veering off to the left, then go back straight again- just enough to be perceptible to the people at the back of the line, but not to the person in front. We pulled up a couple of times, lead person kept insisting they were following the compass precisely. It kept happening, so we switched people, same compass, no problem.
It was only when we were back at the lodge and the original lead person was saying how much they loved their electric heated gloves that we figured out what the issue was.
Somewhat related.
I was doing a winter mountaineering course in Scotland (not as epic as it sounds, but damn fun!). We had some pretty gnarly weather, and were practicing navigation in a whiteout. It’s pretty easy to lose your sense of direction, there’s no landmarks, no reference for what is straight ahead. So the lead person was trudging along, looking down at the compass, following a heading, trudging off into the blank whiteness in a straight line. Every now and then, they would start veering off to the left, then go back straight again- just enough to be perceptible to the people at the back of the line, but not to the person in front. We pulled up a couple of times, lead person kept insisting they were following the compass precisely. It kept happening, so we switched people, same compass, no problem.
It was only when we were back at the lodge and the original lead person was saying how much they loved their electric heated gloves that we figured out what the issue was.