Universal doorknob opening robot for the disabled

Interesting article over on New Scientist about Erin Rapacki’s design for a “low-cost” robot that can be used by the wheelchair-bound to grip, turn, and push or pull on most kinds of doorknobs. Maybe my sense of how much this sort of thing should cost is way off, but $2000 still seems pricey to me, although I guess at the prototype stage it’s pretty impressive. [via Popular Science]