Introduction Prior to the adoption of continuous drawing practices, little attention was given to understanding wiredrawing theory. This can be largely attributed to the fact that, until the introduction of steam power, the single, largest problem facing wiredrawers was obtaining the necessary motive force required for the drawing process. As developments and improvements in mechanization devel...

During the plastic deformation of brittle materials as magnesium, titanium or high strength steels, for instance in bending of sheet metals, the local strain can exceed the ductility – the strain at rupture – and thus cracks appear that eventually lead to rupture. Hot working would be beneficial since a temperature of a few hundred centigrades leads to an increase of the ductility by more than ...

1. PRELIMINARY EXPERIMENTS WITH A FAST Z-PINCH CAPACITOR DISCHARGE: THE GENERATION OF HIGH PRESSURES IN SOLIDS Preliminary experiments are being carried out to study the application of a fast capacitor Z-pinch discharge to the generation of high magnetic fields, dense vaporized metal plasmas, and high pressures. These experiments bear on aspects of the relatively well-known exploding wire techn...

The tropical robber crab of the Indian and Pacific Oceans represents a remarkable example of evolution. It has become the largest land-living arthropod weighing up to 4 kg and spanning half a metre in diameter. And after a marine larval stage it spends its time on land, and will drown if submerged under water. Sea to land transitions are demanding of many aspects of life, and in a new study rep...