Marc Raibert

So there's a calculation about where to put the foot and we did something, you know, relatively simple. And then there's a third part to keep the body at an attitude that's upright. Cause if it gets too far, you know, you could hop and just keep rotating around, but if it gets too far, then you run out of motion of the joints at the hips. So you have to do that.

So there's a calculation about where to put the foot and we did something, you know, relatively simple. And then there's a third part to keep the body at an attitude that's upright. Cause if it gets too far, you know, you could hop and just keep rotating around, but if it gets too far, then you run out of motion of the joints at the hips. So you have to do that.

So there's a calculation about where to put the foot and we did something, you know, relatively simple. And then there's a third part to keep the body at an attitude that's upright. Cause if it gets too far, you know, you could hop and just keep rotating around, but if it gets too far, then you run out of motion of the joints at the hips. So you have to do that.

And we did that by applying a torque between the legs and the body. Every time the foot's on the ground, you only can do it while the foot's on the ground in the air. You know, it, it, the physics don't work out.

And we did that by applying a torque between the legs and the body. Every time the foot's on the ground, you only can do it while the foot's on the ground in the air. You know, it, it, the physics don't work out.

And we did that by applying a torque between the legs and the body. Every time the foot's on the ground, you only can do it while the foot's on the ground in the air. You know, it, it, the physics don't work out.

Well, you're asking an interesting question because... In those days, we didn't actually optimize things. And they probably could have gone much further than we did and then had higher performance. And we just kind of got a sketch of a solution and worked on that.

Well, you're asking an interesting question because... In those days, we didn't actually optimize things. And they probably could have gone much further than we did and then had higher performance. And we just kind of got a sketch of a solution and worked on that.

Well, you're asking an interesting question because... In those days, we didn't actually optimize things. And they probably could have gone much further than we did and then had higher performance. And we just kind of got a sketch of a solution and worked on that.

And then in years since, some people working for us, some people working for others, people came up with all kinds of equations or algorithms for how to do a better job, be able to go faster. One of my students worked on getting things to go faster. Another one worked on... climbing over obstacles. Because when you're running, on the open ground, it's one thing.

And then in years since, some people working for us, some people working for others, people came up with all kinds of equations or algorithms for how to do a better job, be able to go faster. One of my students worked on getting things to go faster. Another one worked on... climbing over obstacles. Because when you're running, on the open ground, it's one thing.

And then in years since, some people working for us, some people working for others, people came up with all kinds of equations or algorithms for how to do a better job, be able to go faster. One of my students worked on getting things to go faster. Another one worked on... climbing over obstacles. Because when you're running, on the open ground, it's one thing.

If you're running up a stair, you have to adjust where you are. Otherwise, things don't work out right. You land your foot on the edge of the step. So there's other degrees of freedom to control if you're getting to more realistic, practical situations.

If you're running up a stair, you have to adjust where you are. Otherwise, things don't work out right. You land your foot on the edge of the step. So there's other degrees of freedom to control if you're getting to more realistic, practical situations.

If you're running up a stair, you have to adjust where you are. Otherwise, things don't work out right. You land your foot on the edge of the step. So there's other degrees of freedom to control if you're getting to more realistic, practical situations.

Probably the smartest thing I ever did is to find the other people. I mean, when I look at it now, I look at Boston Dynamics and all the really excellent engineering there, people who really make stuff work. I'm only the dreamer.

Probably the smartest thing I ever did is to find the other people. I mean, when I look at it now, I look at Boston Dynamics and all the really excellent engineering there, people who really make stuff work. I'm only the dreamer.

Probably the smartest thing I ever did is to find the other people. I mean, when I look at it now, I look at Boston Dynamics and all the really excellent engineering there, people who really make stuff work. I'm only the dreamer.

Did you experience a lot of people around you kind of... I don't know if they doubted whether it was possible, but I think they thought it was a waste of time.

Did you experience a lot of people around you kind of... I don't know if they doubted whether it was possible, but I think they thought it was a waste of time.