I've been dipping my toes in the new social regime. Of course, there's the blog. But I've recently been convinced to give Facebook a whirl, start up a YouTube channel, and have now even set up a Twitter account (after being personally convinced to do so by Ev). It is not that I'm afraid of technology, or don't see the point of all this stuff. It's simply that time is precious, and I'm hesitant to add any further potential timesucks to my life. I haven't heard anyone say that the Facebook/YouTube/Twitter trifecta actually makes one more efficient and productive.
However, in a recent blog post I included a video of stars orbiting the supermassive black hole at our galactic center (not Hollywood effects; this is real data, of real stars orbiting our neighborhood supermassive black hole).
The movie comes from Andrea Ghez's group at UCLA; I put it up on ...