Dorothy Hodgkin's diagram, on which this screen-printed wallpaper is based, was originally published in an article in 'Proceedings of the Royal Society' in 1938. The designer Helen Megaw  has simplified the pattern by extracting the hexagonal motifs and omitting the rounded triangular forms. This wallpaper was used in the Cinema Foyer at the Exhibition of Science in 1951 and has been re-created for this exhibition.