I don't completely understand why there isn't a closeable roof on the Birds Nest as it's pouring rain there. It looks like it would be difficult to run 100m on a track that is soaking wet even if they do sweep the water off. At least they're not doing any of the field events during the rain today, unlike in beach volleyball, which plays in the rain as long as there is no lightning.
I watched coverage of the men's 200m and of course Usain Bolt won gold, actually looking like he was running at the end instead of jogging. What was interesting is that both the silver and bronze winners were disqualified for stepping on the white line dividing the lanes. The bronze medal winner wasn't even notified right away - and they knew, because the announcers knew - and so he was walking around with his US flag and celebrating. How awkward. Can you imagine being thrilled that you came in fifth overall and then finding out later that you actually win the bronze? What would that be like?
It's amazing to watch Michael Phelps and Usain Bolt compete. Both are the best in their fields and are a joy to watch; there's no wasted effort and both are beautiful in motion. Both have the ideal body types for their sports and both are HUGE - Michael Phelps is 6'4", while Usain Bolt is 6'5" - but they didn't get to where they are just by having the right body type. Both obviously train very hard. I feel privileged to be able to watch athletes of that caliber because there haven't been people who could do what they can do.