But, when only one wheel was driven by the engine, it had to do all the work and it couldn't get a good enough grip on the road to do its job properly.

No, we need a major fourwheel drive just to get up that Jeep trail. That trail's all messed up.

It's an entirely student built electric vehicle, which through using its rear wheel drive and front wheel steer by wire can drift around corners.

The brief is that the bus should use 40 percent less energy.

(Video) Guy I might get one of those.

He was borne away by an impulse.

This is a smaller one, and I have a little moving torso on there.

The reluctant gentleman with the sizeable mouth is mr. Frisby.

An automobile has four wheels.

(Laughter) (Applause)

The guys in La Jolla said, We've got to get started now.

And sometimes they'd be so powerful,

Gear the engine to the front wheels.

We can turn the volume up a little bit if that's available.

Everybody freeze!

The vehicle is actually modeled as a system with 2 non steerable wheels and 2 steerable wheels.

There are battery packs here as well that power motors that are sitting at her hips, as well as her knee joints, that move her forward in this kind of smooth and very natural gait.

Sir, elevator 2 is moving.

So this evidence is powerful.

Now, the two Rovers, each one of them is, kind of, getting old.

These are motorized devices that are controlled by little electrical signals from your muscle.

Rings

Change to Desktop 2

Truth be told, it stirs great emotion in us.

So you can turn the study of human learning from the hypothesis driven mode to the data driven mode, a transformation that, for example, has revolutionized biology.

See the advantages of a cabman as a confidant.

Look out of the window in about ten minutes and you'll see, the woman answered.

Instinct told me to run, but then I realised it was hopeless.

And then we touch down, we're actually on the wheels, we're ready to drive, day one.

I don't know how many zero's I'm going to need.

Wood

Stroke

Stroke

The ring!

Bracelet?

We moved everything to the wheels, so you have the drive motor, the steering motor, the breaking all in the wheel.

They produce most of the heat that drives the internal processes of the earth.

And how do we do that?

I think I found the problem, assuming... this ship runs on tiny little batteries.

Let's put this bar on a pin, so that it can swing in either direction.

I move from there to there

When a wagon turns a corner, the wheels can travel at different speeds because each one can turn freely on the axles.

They have rolling devices and axles.

Barack Obama won (Applause) because he mobilized people as never before through the use of social networks.

There's my first exploded view and all the little pieces and the little worm drive and all that stuff.