To see how the gears work:

1. Click on one of the gear sets on the rack behind the table, and drag the gear to the beam of the machine.

2. Click on the foot pedal to start or stop the machine.

3. The magnifying glass cursor will show you where you can see a close-up of how the gears operate.

4. To try another set of gears, click and drag the new set you wish to use to the beam. Then click on the foot pedal again.


Related Investigation:
Gears