The works on panel are created with an intricate application of multiple materials including acrylic, aluminum foil, pencil, dried pigments and oil pen. (statespacesf.com)
By combining multiple materials in this way, it's possible to catch more photons, making a more efficient cell. (sciencenews.org)
His thorough use of black using multiple materials helped inform his knowledge and understanding of colour. (artlyst.com)