Chainmail may be making a comeback as part of a next-gen material that could be used for human exoskeletons. The material, made by scientists from Singapore and the US, is composed of interlocking octahedron-shaped particles (first made of nylon, and then aluminium) that’s pliable but also capable of becoming rigid and load-bearing. How does that happen? When the material is enveloped in a plastic case and vacuum-sealed, it stiffens up, similar to a sealed bag of rice.
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With drug overdose deaths on the rise, authorities are attempting to curb the epidemic by tracking and sharing information in real time. In one unique effort, a nonprofit in New York City is using drug-testing equipment and stamping or marking habits of dealers to identify drug batches that may endanger users. Other approaches are also being used, such as monitoring drug-related chatter on Reddit and analyzing local wastewater for opioid and other drug levels. With the combination of these efforts, researchers hope to put a dent in the opioid crisis and reduce overdose deaths. Read full article here