I’m in the (slow) process of finishing my astronomy senior thesis project. I met with my adviser today, and he asked me what a certain number of pixels was in arcseconds in one particular image. I knew the pixel scale, so it was a really simple thing to calculate. But for some reason, I always have a lot of trouble with these type of unit conversions. If there are .43 arcsecs per pixel, then how much is 7 pixels? That type of thing a 4th grader could do in their head, but I really embarassed myself today with how long it took me to figure it out. If I put it on paper and carefully write it out, I can do it, but this is the type of thing that I, having completed a physics degree, should easily be able to do in my head.
I have a theory that for every one thing someone’s good at, within that thing there’s one particular part of it that they still inexplicably struggle with.