Before exploring the topic of aluminum shelves, let us consider first the human condition. It has often been noted that the basic minimum subsistence requirements for biological survival consist of water, food, and shelter. Along the same lines, human civilization requires, at a minimum, these three things: a source of energy, labor-saving machinery, and an instinct for organization. At the dawn of history, the first two needs were met by the invention, respectively, of fire and the wheel. It could be argued that the third need was met by the invention of—shelving.
Shelves: From Stone Age to Bronze Age—and Beyond
Nowadays, whenever anyone utters the word “shelf,” typically the first image that springs to mind is a bookshelf.