As today is the anniversary of my entry to State College, I reflect on the time I was a happy graduate student at Penn State. The peak comes in the middle years when I ran my own weekly show. I didn't get paid in college radio, but I had control over my income and my time.

Being a graduate teaching assistant combine an income with an enjoyable job and an open opportunity for advancement through learning. I ran my show how I wanted in conjunction with a partnet who complented my mangement.

KIhan Academy has a lecture on precession, and I also figured that the calendar would also move so that the solstices would not gradually be earlier. What I didn't consider were the perihelia and aphelia would moved along wth precession.

 This week I ran across Langrange multipliers. I found explanations in both MITOCW and khan. It reminds me of eigenstuff enough to understand them. I see a parallel with Lagrange multipliers. It even reminds me of engineering physics, at least the second time I took it in grad school.

I just finished a training on six sigma and started one on bookkeeping in LinkedIn. I also took one in differential equations. It starts much differently than when I took the subject at Penn State. It also starts with slope fields, sorely lacking in the previous course.