Like botanical illustrations, X-ray photography is both scientific and artistic. This photographic technique that uses X-rays to reveal internal details that are not visible externally has been used in medicine since the 1800s. Though less common, the technique of developing an X-ray negative into a positive and painting it using translucent paints has been in practice for 100 years. Photographic artist Albert Koetsier has developed a process he calls X-rayography, which showcases intricate details of leaves, flowers, plants, and shells. Prints of these X-ray photographs make a stunning contribution to any wall art display.