ENGLISH ACTIVITY

Bridges and tunnels:

Bridges are great for getting across things like reivers, they are really usefull , and they are in all the world without bridges we would have a lot of traffic.

tunnels are the best way to go under and trought something, we use tunnels in subways and for passing trough mountains.

The first tunnel was build in March 25, 1843, it was constructed under a river and it opened after eighteen years of work

Bridges:

They are 3 main types of bridges:

the suspension bridge, the arch bridge and the beam bridge.

Did you know that the most effective type of bridge its the truss bridge,

it is the most important because it can hold more weight.

the suspension bridge its the most modern bridge.

in the past engineers often used explosives to blast tunnels trought rock.

The longest rail tunnel in the world its the Gotthard Tunnel, Its in Switzerland, and its 35 miles long!

Fun facts about bridges:

Bridges can be friendly to the environment. ...

Some bridges go absolutely…nowhere. ...

Bridges provide border security. ...

Traditional bridge designs can be as stable than modern ones. ...

The highest bridge on earth was completed in 2016. ...

Bridges can be made from glass.