[Pontiac]

It would have been nice if the author would have explained exactly what ‘tendon driven’ means.

[zeestephen]

Currently, most humanoid robots have motors in their joints.

Thus, they have significant power, but much less control over direction and precise motions.

For instance, a traditional service robot might be able to support an elderly person when walking.

But Roboy, at some point, will be able to gently grasp a person's arm, exactly like a human being.

There's a video at the Kurzweil link that shows the "power tendons" up close.

But, no precise engineering description, if that's what you were hoping for.

[Hot Tabasco]

exactly what ‘tendon driven’ means.

Springs and rubberbands