Iron+&+Steel

=Iron & Steel=

- Quotation opinion:
The quotation : “the old cast iron buildings died out. I'm not really sure whether the new skyscrapers killed them, or the new esthetics” means that there were different reasons why the cast iron buildings died out. I don’t believe that those were the only reasons. I think that along the years human beings devolp more durable, flexible, easier to use and manage materials. And that’s why cast iron buildings were substituted by buildings made of this new innovation called steel.

Sentences:
1. Clamps: devices that hold things firmly together

- That carpinter is using a clamp to hold two pieces of wood together while they’re being glued. .

2. Lintel: a beam placed over an opening in a wall.

- In my house all the lintels are made of metal, but in some other houses lintels are also made of wood or concrete.

3. Domes: a hemispherical roof.

- In a lot of ancient buildings such as curches or cathedrals, they used domes to make them look bigger and more elegant.

4. Quarry: an open excavation from which stone or other materials is extracted by blasting, cutting or drilling.

- One of the disadvantages of stones is that they’re very difficult to quarry because of their weight and size.

5. Framework: a supportive structure around which something can be built.

- The framework of windows and doors are mostly built of metal, but they can also be built of wood or concret.

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