IN this edition a considerable number of changes have been made, and much new material has been added. In every case records of experiments have been brought right up to date: this is especially the ...

Let's think of a paper sheet. If we tried to stiffen it from its primary state, it couldn't support its own weight. However, if we bend it, the sheet achieves a new structural quality. The shells act ...

It's tempting to think of "strength" as a simple variable and that various materials all fall somewhere on a spectrum of strong to weak. The reality, of course, is much more complex. Different ...