Biomimicry
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Inspired by the wings of dragonflies and cicadas, researchers have developed a new coating for orthopedic implants. It not only shreds harmful bacteria, but also monitors stress on the system, meaning it could warn of impending implant failure.
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Although biped and quadruped robots may excel at traversing uneven terrain, they require multiple sensors and complex algorithms in order to do so. Scientists have now taken a "simpler" approach, by creating a robotic centipede.
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The utility of the humble mussel in the world of medicine has expanded once again. This time, researchers figured out how to use a mussel-based glue to hold stem cells in place long enough to repair cartilage inside a rabbit's body.
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When designing fish-like underwater robots, you want a means of propulsion which is both energy-efficient and reasonably speedy. A new tail-flapping system may fit the bill, paving the way for wider usage of such bots.
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Even though some conditions cause people to lose their appetite, those folks have to keep eating in order to recover. A new "electroceutical" ingestible capsule could help, by making them feel hungry … and it was inspired by a lizard's skin.
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The flapping motion of a new robotic jellyfish is not only good for propulsion, but it can also draw small bits of debris up from the ocean floor without contact. Such a robot could remove trash from delicate ocean environments, like coral reefs.
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If you've ever tried piloting a drone, you'll know that they end up running into walls, trees or whatnot … often getting damaged in the process. An experimental inflatable-body drone, however, just bounces off obstacles – plus it can grasp onto them.
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To develop a heat-trapping fabric, researchers looked to polar bears, who thrive in incredibly low temperatures. The secret, they found, has to do with a relationship between the bears' hollow translucent hair and the black skin that lies beneath.
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If you're making a small robot that can explore tight spaces, it would be good if that device could also shimmy its way through narrow gaps. An experimental new robot can do just that, by emulating a caterpillar.
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No single robot can perform all tasks, yet bringing a bunch of different robots along on Moon missions would be quite inefficient. The WORMS setup offers an alternative, in the form of components that can be mixed and matched to make whatever robot is needed.
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Traditional paint gets it color from synthetic pigments, which fade over time and aren't very eco-friendly. There may soon be a better alternative, though, in the form of a paint which incorporates color-producing nanostructures.
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Earthworms move through the soil not just by wriggling around, but by sending peristaltic waves down their bodies. A new robot, which employs that same strategy, could one day be used in underground exploration or even search-and-rescue missions.
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