1. DU and the evolution of hard target weapons 73 2. Properties, advantages and hazards of DU for military use 74 3. New weapons technology known and suspected DU applications 76 4. DU armour-piercing ammunition and missiles 81 5. Smart or guided bombs 84 6. Hard target cruise missiles 86 Figure 1 Hard Target Guided Weapons in 2001 with dense metal warheads 89 7. Other suspected weapons systems...

A set of non-linear optimisation algorithms are combined with a finite element simulation code to analyse the energy absorption and elastic stress wave propagation problem in multilayer/multimaterial armour systems under ballistic impacts. An Abaqus Python script is used simulate event generate variables post-processing outputs necessary for integration algorithms. number modelling strategies c...

The commonest myth about science in the media is that journalists are interested only in doom and disaster. The second commonest is that rare reports of good news are invariably ruined by error and sensationalism. The UK media on 10 March provided ample evidence to explode these myths simultaneously. The occasion was the publication of two closely linked papers (Science 2000, 287:1809-1815 and ...

The three-spined stickleback Gasterosteus aculeatus is a model species for studying questions in ecology and evolution. The rapid diversification of G. aculeatus in post-glacial freshwater environments, combined with recently developed molecular tools, provides a unique opportunity to study the functional basis of fitness variation in natural populations. In derived freshwater populations, a nu...

Some animals have evolved the use of environmental materials as "portable armour" against natural enemies. Portable bags that bagworm larvae (Lepidoptera: Psychidae) construct using their own silk and plant parts are generally believed to play an important role as a physical barrier against natural enemies. However, no experimental studies have tested the importance of bags as portable armour a...