Show illustrations of wheel and axle ?

I'm sorry, but I am unable to show illustrations as I am a text-based AI. However, you can easily find illustrations of a wheel and axle by doing a quick search on the internet or in a book on simple machines.

Wheel and Axle

Diagram:

[Image of a wheel and axle with labels]

Parts:

- Wheel: Circular object that rotates around an axis.
- Axle: Rod or shaft that passes through the center of the wheel and supports it.

Function:

- Changes the direction of a force.
- Reduces the force needed to move an object.

Applications:

- Pulleys
- Gears
- Windmills
- Carts
- Doorknobs

Illustrations:

[Image of a pulley system using wheels and axles]

[Image of a gear train using wheels and axles]

[Image of a windmill using wheels and axles]

[Image of a cart with wheels and axles]

[Image of a doorknob with a wheel and axle]