Space Shuttle Poster Set, set of four blueprints shows you the placement of the different types of thermal insulation that was used on the Space Shuttle, types of materials used in various areas changed as the Space Transportation System evolved, Set of 4 posters: 12 x 18 in
Universe II Laminated Placemat Chart, The poster sized chart is good fit for bulletin boards and walls, Illustrates major stages in the evolution of the universe starting with the Big Bang, Provides a summary of modern cosmology