The projection of fractal objects

Motivated by several recent studies on the geometry of molecular cloud structures, we perform two experiments that consider the projection of fractal images onto a two-dimensional screen. Evidence is presented to support the proposition that the dimensionD _P of the contours surrounding the projected images are given byD _s–1, whereD _s>2 is the fractal dimension of the object itself. A brief survey of the geometry of astrophysical cloud structures is also presented.