On 11/7/2010 9:55 AM, John Park wrote:

Don't have the url handy, but a few years back there were videos on the web
of DARPA's Big Dog robot that moved across rough terrain, righted itself
after being pushed off-balance and could jump over obstacles (all on four
legs).

That's over he
http://www.youtube.com/watch?v=cHJJQ0zNNOM
I find that thing highly disturbing, like if a headless horse showed up
on your doorstep someday.
If you check out the video at around the 1:40 mark it looks for all the
world like two people's lower torsos and legs facing each other.
Apparently, its engine is so loud you can hear it coming from around a
mile away.
Get ready for the Robomatadors:
http://www.youtube.com/watch?v=ptyV1cpE14o&NR=1
You stick a sword into that thing and you are probably going to get
electrocuted. :-D

Pat