Now, for the first time, we saw them in their element, swimming, with the mechanical legs tucked away or used as flexible work arms.
He began using a mechanical hydraulic prosthetic leg in the 1980s.
Some are grisly: five human skulls, probably left by medical students; a mechanical leg.
A gambit was a sort of leap in the dark with mechanical legs.
The spider walked on four singing, mechanical legs; it was a meter and a half tall.
Beowulf twitched his mechanical legs and took two steps forward.
The mechanical legs might someday help the elderly get around, for instance.
Asimo started as a pair of mechanical legs and had been in development for over 20 years.
Looking at each other steadily, the two men marched to the trench and stepped into it with their mechanical legs.
In the same year, he also designed "mechanical legs", a prosthetic device, which was later used by a French entrepreneur.