This is my first blog, so I guess I should start off by explaining my motives behind writing what will probably be a sporadically updated blog. Basically, as I learn things that I find pretty difficult to find online, I’ll try to explain them as best I can here. Also, since I enjoy learning math, I’m going to try to keep up a (semi) regular stream of math posts. If you have any questions, feel free to contact me. My up-to-date contact info can be found on my website aaron.niskin.org.