Lab robot jogs just like a human
http://www.engadget.com/2016/03/18/amber-lab-bipedal-robot-runs-human/
...if it could jog for me and it would get me in shape and I would lose weight I would buy one.

Liberals are like a "Slinky". Totally useless, but somehow ya can't help but smile when you see one tumble down a flight of stairs!