iron+&+steel

What it takes to be an iron worker?** An iron worker must know about basic math, because they design iron-&steel structural members. Also, iron workers need to have a good physical condition. This means, having balance and not suffer from height dizziness. Iron working requires body strength, too. media type="file" key="1.mp3" width="240" height="20"
 * [[image:http://managingthedragon.com/wp-content/uploads/2007/11/steel-vat.jpg width="243" height="323"]]

//**Corrugated iron (CGI) in Australia**// Corrugated iron is, as the name suggests, a construction material originally made of wrought iron. It is characterized by its lightness, strength, corrosion resistantance, and easy transportation. Corrugated galvanised iron or CGI, was invented in 1840 and promptly became a common construction material in australian rural areas. It was (and still is) used to build sheds and water tanks, for example. Although other materiales like concrete are used to construct, CGI remains as the reference material in rural and some urban areas. Its use is also popular in the US . media type="file" key="1.mp3" width="240" height="20"

**Post your reply to your iron and steel**

Since the iron appeared, revolutionized the world of structures and construction. thanks to this new material, we have been able to enjoy new and different buildings, which would not have been possible without the use of iron. It is for this reason that many say "in these modern times, almost nothing is impossible to build"

Today, we live in a world subject to constant change and fast. It is for this reason that an innovative new building (both structurally and aesthetically) has devoured the first buildings. More, this is but another reflection of scientific developments.
 * // On your wiki, write your opinion about this quotation from the recording: “the old cast iron buildings died out. I'm not really sure whether the new skyscrapers killed them, or the new esthetics” //** 