Scientists have created a modern chain mail: it acts like a bulletproof vest

Materials that change properties in response to certain stimuli will be useful in many areas—from

 robotics and medicinebefore the construction of modern aircraft. A new example of this type of shape-shifting technology was used by scientists to create modern "chainmail." It quickly becomes flexible or rigid thanks to specially arranged interlocking particles.

Lightweight fabric 3D printed fromnylon plastic polymers. It consists of hollow octahedra (a shape with eight equal triangular faces) that interlock with each other. In a plastic envelope and vacuum sealed, the fabric becomes 25 times stiffer and can support 50 times its own weight.

This next generation fabric paves the way forthe creation of light body armor, as well as protective equipment for athletes and exoskeletons that will help the elderly to stand, walk and carry objects.

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