For fingerprint extraction, there are two basic types of dusting powder that can be used: Regular Powder: Regular powder differs from magnetic powders in the respect that magnetic powders contain iron and they adhere to a magnet.
Some environmental art: 1  Informs and interprets nature and its processes, or educates us about environmental problems. 2  Is concerned with environmental forces and materials, creating artworks affected or powered by wind, water, lightning, even earthquakes.
Volume is the most important of the three main kinds of tactual qualities in sculpture. It is the quality of all-roundness in a sculpture; the extension of a solid in all three-dimensions. When holding and surrounding an object with our hands, we appreciate its volume.