la primera foto de un fotón.. hiperealismopic.twitter.com/n1pBXGHg2N
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
la primera foto de un fotón.. hiperealismopic.twitter.com/n1pBXGHg2N
gracias Teacher, por mantenerme siempre al tanto de estas noticias 

Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.