My name is Tom Swanson. I’m a physicist, working at the US Naval Observatory, doing atomic-physics things related to timekeeping, like building atomic clocks and other things like building clock buildings and doing paperwork (it is the government, after all). I am not an official spokesman, so nothing I say should be construed to be the view of my employers or officially sanctioned in any way.

I draw the occasional cartoon and like to geocache. Feel free to use any of my cartoons posted here or at my web site for educational or other non-commercial purposes. Higher-resolution files are often available on request.

And I’m not an official spokesman. Got that?