The weather has been gorgeous in Berkeley, so I thought I'd go outside to work. Predictably, I didn't get too much work done, but I saw a number of interesting things at the Marina.
For starters, at the Berkeley Marina, the main entertainment is flight. The wind wasn't good at first for kites, and I saw many people fail at getting their kites to fly. But I looked up at just the right moment, and I saw a spider drift by. I ran after it--it was clearly "ballooning" on strands of its own silk! I'd heard of such things, but never seen them. It didn't seem to be using just one strand of silk--it looked more like some sort of structure, but it was hard to make out any details. I didn't see any others, but that alone was amazing enough. I was particularly amused that the nearly-brainless spider was succeeding where all the humans couldn't get their kites to stay up.
The low winds were good for more than just spiders, though. I saw a remote-controlled helicopter! It didn't do the fancy tricks you'd expect from, say,
Pieter Abbeel's AI-controlled helicopter, but it was cool to see anyway. I also saw a remote-controlled glider, but it wasn't able to soar until the wind picked up and the kites started flying. (The wind came from the east! At the Marina! If you're a Berkeley resident, you know how weird that is--usually in the afternoon at the Marina there's a strong sea breeze.)
In addition to the spider, I saw a little more good wildlife. By being very still, I was able to get some nice close-up pictures, so here's a little sequence:
( cut for many pictures )