Sunlight

I'm in crunch mode working on my thesis, so recently I've been in the lab 16 hours a day. I have also been doing almost all of my work at night. That's of course not at all uncommon, either for me or for people here in the lab. But I have started to notice some strange effects to prolonged use of this routine. Those include (1) I'm now on a first name basis with the lab's cleaning crew, and (2) I find the concept of sunlight to be really cool. I mean check out what it's doing to my (usually kind of boring) glass. If you haven't seen it in awhile, sunlight is really something.