Sag' ich zum Augenblicke verweile doch, Du bist so schon J. W. v. Goethe, "Faust" An old dream of mankind and a sign of culture is the conservation of moments by taking an image of the world around. Pictures accompany the development of mankind. However, a picture is the two-dimensional projection of the thr- dimensional world. The perspective - recognized in Europe in the Middle Ages - was a first approach to overcome the difficulties of imaging close to reality. It took up to the twentieth century to develop a real three-dimensional imaging: - bor invented in 1948 holography. Yet still one...