The group ** loshombresdeThales** has proposed in his first post a topic entitled metric "the divine proportion“, transcribe the first paragraph:

"In our first blog post we want to talk about the golden ratio, which is present in many of the things around us, yet, most do not know its existence. "

Aptly displayed remarkable aspect to note:

- The different names used (divine proportion, golden ratio, golden ratio ...)
- The profuse of his presence in our lives.

An interesting article that defines the "golden ratio" can be found aquí (Wikipedia).

Let's try to define the concept of a simple and affordable by all; can serve as a reminder, in case of doubt, to identify and obtain properties derived.

**From a geometrical point of view
** we can define the golden ratio from a segment AB.

Suppose we find a point **C** dividing the segment in two parts that meet the following relationship between the lengths of the segments are in Figure:

AB x AC = CB x CB

We say that the **segment CB eg gold of the segment AB**

What does this mean?How do you define the relationship in a simple and visual?

By multiplying two lengths is obtained an area. **AB** x**AC** is therefore an area and we can imagine it as a **rectangle ** base **AB** and altitude **AC**

Similarly, **CB** x >**CB** we can identify a **square ** of side equal to the length of segment

Now we can interpret the equation, which tells us that both areas , the square and rectangle, equal.

Does this have to do with the sense of balance conveyed by this relationship applied to objects?

I think it's a very simple concept, Donald Duck goes to studying these things.

This post is part of an innovative educational project presented in Blogs experimental: Starting an experience of educational use of blogs and accessible Educational Blogs

**Related**

The number of gold (Video)

The Vitruvian man (wikipedia)

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