Wheels turn on axles.

When it comes to your bicycle, it is a little more complicated.

Let's fasten a spoke on the inner end of each axle.

Each time you step on the pedal, the wheel turns once.

At 6 o'clock in the morning when the alarm sets off, the Clocky also starts running in the room.

I can't tell you how wonderful this is.

The wheels turned around.

That's our challenge.

The wheel began to turn.

The differential looks complicated, but one we understand its principle, it is amazingly simple.

When we stop one wheel, the cross bars will continue to push the spokes of the free wheel around.

The problem is no matter how small this constant is over here,

I found a tractor fan, shock absorber, PVC pipes.

This is a wire drive, using bicycle wheels.

You need to turn the Tsapa.

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

And the way this happens is through the phenomenon of persistence of vision.

The wheel began to roll slowly.

For most small wheeled robots, they use a method called differential steering where the left and right wheel turns the opposite direction.

The outsides wheels must spin faster than the wheels on the inside, because they have a greater distance to travel in the same lap of time.

And good night, Watson, he added, as the wheels of the royal brougham rolled down the street.

It's actually hitting a tooth.

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

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

Here, let me introduce you to Sam Haber.

They'd sit down I'd sneak out of the house.

300. Gear coming.

Gear down.

How about the tricycle?

What's with the tricycle?

Rotates text

Cycle seconds

Notice that this support is not locked to the axle it turns freely.

Well, he needs friction to start riding.

There are four on board micro controllers that, each time this ring rotates it, as it passes the rear of the display, it picks up a position signal.

He turned the dial on the bicycle lock.

Metal eagle.

An automobile has four wheels.

Spin... spin... spin...

A unicycle has only one wheel.

We're going downhill in some rocky terrain, and the front tire of Alex gets caught in one of these crevasses here.

As the day goes on, there's 24 hours going round,

And it works out the dimensional analysis and hopefully it also makes sense to you intuitively

And what you can do is just, if you give it a twirl, well they just keep going on.

And it exists.