I have prepared some comments for some specific topics we touched upon yesterday. We have a lot to learn toward perfecting nondestructive testing in any area. The Federal Government of Germany has funded us for approximately five years. The Institute for Nondestructive Testing started experimental work about three years ago. We are covering different topics, mainly keeping in mind the application to heavy section materials--the nuclear industry, the steel industry--but to some extent, recently work has also been started on smaller sections and ceramics. We consider nondestructive testing not as just a method for depicting and describing defects, but more as a general method to judge the material, its structure, and the state of stress. Furt...