/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: KaTyTa28 https://public.slidesharecdn.com/v2/images/profile-picture.png "Hay dos maneras de difundir la luz... ser la lámpara que la emite, o el espejo que la refleja"