nachiketas writes: Oxford University researchers David Porter and Fujia Chen examine the structure of silkworm cocoons, which are extremely light and tough, with properties that could inspire advanced materials for use in protective helmets and light-weight armour. 'Silkworm cocoons have evolved a remarkable range of optimal structures and properties to protect moth pupae from many different natural threats,' Porter and Chen said in their paper. These structures are lightweight, strong and porous and therefore 'ideal for the development of bio-inspired composite materials.' Their research could lead to lightweight armour that dissipates rather than deflects the particular components of a blast that do the most damage to the human body — much like crumple zones in modern cars or sound-absorbing sonar tiles that make submarines harder to detect. Link to Original Source
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