Charles Tumosa and Marion Mecklenburg, by Dougherty, Harold E, 1991, Smithsonian Archives - History Div, Analytical Services Group Leader Charles S. Tumosa and Conservation Analytical Laboratory Painting Conservator and Structural Engineer Marion F. Mecklenburg discuss the computer-generated image of a painting that has deliberately been dropped to simulate what might happen to such an artwork in transit. Mecklenburg argued that conservators of fine art traditionally focus on the chemical deterioration of paintings, yet protecting paintings in transit is an engineering dilemma. Today, whether they are traveling by plane, train or moving van, artworks on loan from museums risk exposure to vibration, impact and variations in temperatures and humidity--conditions that have the potential to cause damage..