Just a dinner conversation

We were sitting in a restaurant in Monterey, a town on the Pacific coast about an hour South of San Francisco. I was talking to another German physicist about a lecture and we mentioned the word "Navier Stokes Equation" which is a fundamental equation in fluid dynamics. Two people who were sitting behind us left, but one turned towards us and said he knew the Navier Stokes Equation pretty well, too. It turned out, they were German physicists as well, apparently attending a conference about fluid dynamics or something like this in Monterey or around there.