This is a quadrotor.

Using a bicycle frame and an old bicycle dynamo,

So it forms a tetrahedral crystal.

Characteristic of a fourfooted animal.

Using a bicycle frame and an old bicycle dynamo, I built my machine.

Motorcycle 33 33

Motorcycle

Scooter?

I have a bicycle!

Thirty years later, mountain bike sales and mountain bike equipment account for 65 percent of bike sales in America.

Ken wants a bicycle.

I've got a new bike.

Motorcycle 4

This is an ambucycle.

That's a big scooter.

Just a bicycle.

What bicycle?

Bring the gentleman's bicycle.

Get a Vespa!

But this is a girl's bike.

Sal Khan So this is a quadratic equation, essentially.

Stanley's cousin's in town. We could make it a foursome tonight.

She was nearly hit by a bicycle.

Each boy has a bike.

Water trailer 30 2 500 75 000

Motorcycle 33 33 1 100 36 300

Don't worry. I'll have the bicycle.

Look, here's François' bike.

I'm going out to survey the site.

Can you ride a bike?

You're being overtaken by a scooter!

But that's just a scooter.

The silicon tetrahedra are held together by the OH group and hydrogen bonding occurs between the hydrogen in the OH and the silicon tetrahedra.

One, two, three, four. These are all quadrilaterals.

You say you've written a string quartet and a piano concerto.

So, that's an empty parka jacket.

(Laughter)

Anyway, it was a scene.

That's pretty tough for any male, especially if you ride a bike.

Do you have it or not?

You see there's plenty of room to hide a bicycle.

Did you share one bike?

I've driven my father's several times.

What's with the kiddy bicycle?

He was also the second tenor of the quartet Kipparikvartetti in the early 1950s.