
Researchers at Meta have developed a wristwatch-style tool that can interact with devices using hand gestures — or even a thought.
As the company detailed in a blog post, the Bluetooth device lets users control a computer with their "hand resting comfortably at [their] side." It allows the user to do obvious things like move a cursor around, but users can also type out messages by writing out the letters in the air.
The device operates using "surface electromyography," a non-invasive way to track the electrical activity of muscles.
Source: https://mashable.com/article/meta-research-device-wrist-control
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