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...2), the problem was that they were limited to materials like wood and stone. Metals, although in use for tools, armour and weapons, couldn't be produced in sufficient quantity or quality for bridge building until the nineteenth century. [Described image] Figure 2 Pont du Gard Wood doesn't last too well, so let's turn our attention to stone. One of the problems with stone...

...2 Design around us - Almost everything you see around you is designed; that is, it exists as a result of human thought about what is needed. As I sit in my office (Figure 1), I see a telephone, a cup, a desk light, a building opposite my window, a computer in front of me, the chair I am sitting on, and the clothes I am wearing. These are the obvious objects of design....