User:Juan andrés

Bienvenido
 Who I am 
 * Sandbox
 * Contributions
 * Criteria for good articles

 What I like to do 

 The way I work 

 My thoughts 

 Ancestry 

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Hi, I'm Juan andrés (actually Juan Andrés, but it doesn't matter) and I will help you in any problem you have.

Hola, soy Juan andrés (aunque realmente sea Juan Andrés) y lo ayudaré en cualquier problema que tenga.

'''Bonjour, je m'appelle Juan andrés. Je l'aiderai en quelqu'un problème que vous ayez.'''

Who am I
My name is Juan Andrés Rivera Santana, I'm from Mexico and I'm 18 years old. I've been a user here since December 2005, but I have had long interruptions.

I would like to help in...
If there's a problem arround there, I would help in scientific and technologic areas. Here are those categories:


 * Physics
 * Chemistry
 * Biology
 * Computing science
 * Astronomy
 * Meteorology

And some other areas that I could help too (but those ones are not related with science):


 * History
 * Grammar
 * Languages of the world

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