TECHNOLOGY

• TECHNOLOGY

1. Analyze a typical structure from the “Delta de l’Ebre”: forces, loads, shape, materials. Can you see any bridge?

in delta de l’ebre there are a lot of bridges , simple bridges

the forces of this bridge are:

the red lines are compression and blue one’s are tension.

1. Parts of a bicycle. Analyze your bicycle: how many plates and pinions have your bicycle? Which is the gear ratio of your bicycle? Do you think that the bicycle is a multiplying or a reduction system? Why?

The gears at the front are called the chain wheels. Most bikes have two or three chain wheels that look like this:

Attached to the rear wheel is the freewheel, which looks like this: The system is  multiplying if not would go slower than the force that we do . 3- Draw a Compass Rose, using the Autosketch program. You have the needed instructions hanged on the “Campus Virtual”