Researchers unveil first robotic leg using ‘artificial muscles’


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Researchers announced on Monday, Sept. 9, the first ever robotic leg powered by artificial muscles. The Swiss-led team said it became inspired to create the new technology from the 600 muscles in the human body.

The team of scientists said they hope the breakthrough will lead to robots capable of nimbly walking and jumping across all kinds of surfaces from grass and sand to rocks and pebbles. The artificial muscles use oil-filled bags with electrodes attached to them. The liquid then contracts and expands with the help of controlled shocks.

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The leg relies on a computer code to interpret two signals, one extending the joint and the other bending it. After each hop, the leg’s joint adapts its angle based on the terrain.

Researchers argue that traditional human-like robots made with motors and stiff metal joints can be dangerous and expensive. They contend that their model is safer, cheaper, lighter and requires less energy.

The scientists involved in the study said that while humanoid robots may someday be used to lift heavy object, they also have emotional support in mind. One researcher reportedly saying that they want a robot that can “also give someone a hug or shake hands.”

The team said the technology is still in the beginning stages, just six years old, with the leg capable of jumping in a circle currently. However, they hope mass production can kickstart advancements in the coming years.

Evan Hummel (Producer) contributed to this report.
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