I used to commute to work and take occasional trips in my light airplane. .

At MIT, I used to ride horses, play hockey, and do a little SCUBA diving. Then I spent some time rock climbing, often with John Black.

I once took a trip to Japan, Hong Kong, and China. I still travel a lot, but don't really have time to put my pictures on the web anymore.

My sister is a professor at the University of Pittsburgh