Walking requires quite a lot of energy, most of which is wasted while manuevering ourselves from one foot to another. This cool prosthetic foot helps you create and store this energy. It is battery operated. Surely, this battery operated foot isn't the first one to exist in the history of mankind but surely, it's the most compact one. we've seen around. This foot is being tested at the Seattle Veterans Affairs Medical Center. There's not much said about a retail version of it being available though.

Via - [Greenlaunches]