Un par de videos del tubo: http://www.youtube.com/watch?v=ciW1ANz79Tc&eurl=http%3A%2F%2Fwww%2Egoogle%2Ecom%2Freader%2Fview%2F http://www.youtube.com/watch?v=zYHoGFJ3TVE&eurl=http%3A%2F%2Fwww%2Egoogle%2Ecom%2Freader%2Fview%2F Visto en el siempre recomendable "Razón Atea" (http://razonatea.blogspot.com ) Saludos -- alvaro