Smart, Self-Driving Wheelchairs on the Way

While the promise of self-driving cars may be mere years away, those people who have a powered wheelchair to get around town hopefully won't have to wait much longer before their chairs can do the work for them as well. Researchers at Case Western Reserve University are using robotics to build smarter wheelchairs - wheelchairs that still respond to human commands, but won't go rolling off of a cliff by themselves even if the human operator holds down the accelerator and

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