A POST ABOUT METALS

Hello again.


As you can know, there are many types of metals.

We can classify into the following types:


FERROUS METALS: METALS CONTTAINING IRON.


   Pure iron.
   Steel.
   Cast iron.

NON FERROUS METALS: METALS THA DON`T  CONTAINING IRON.

THE MOST IMPORTANT INVENTION

Hi again.

Today we will write a new post.
This poat will try plenty of the most important invention: the mobile phone

Because with it the comunication is very easy. The mobile phonee was invente with Martin Cooper(17 DE OCTUBRE DE 1973).