Como parte de mi esfuerzo por hacer de mi blog uno útil para todos estoy considerando cambiar su idioma al español.  De esta forma se me haría mucho más fácil comunicarle con ustedes.  Sin embargo quiero conocer cuál es tu preferencia antes de tomar una decisión, es por eso que incluyo aquí una encuesta.  Por favor déjame saber tu preferencia.

As part of my effort to make my blog useful for everybody I am considering to change its language to my native language "español".  By doing this it will be easier for me to communicate with you.  However I want to know your preference before make a decision that is why I am including this poll.  Please let me know your preference.

La semana pasada durante mis vacaciones terminé de leer dos libros que me interesaban.  Uno de ellos fue  la Historia del Tiempo: Del big bang a los agujeros negros,es un libro de divulgación científica escrito por el profesor Stephen Hawking y publicado por primera vez en 1988. Se convirtió rápidamente en un best-seller, En mayo de 1995 entró en la lista del The Sunday Times entre los más vendidos durante 237 semanas, batiendo el récord de 184 semanas. Esta hazaña está registrada en el Libro Guinnes de los Récords de 1998.

Trata de explicar varios temas de cosmología, incluyendo el Big Bang, los agujeros negros, los conos de luz y la Teoría de supercuerdas al lector no-especialista en el tema. Su principal objetivo es dar una visión general del tema pero, inusual para un libro de divulgación, también intenta explicar algo de matemáticas complejas.

Leer mas de: Historia Del Tiempo – Stephen Hawking...

At 9:43 PM Atlantic time of the 20th of February 2008 a total eclipse occurred.
The partial eclipse begins as the Moon's eastern edge slowly moves into the Earth's umbral shadow. During the partial phases, it takes just over an hour for the Moon's orbital motion to carry it entirely within the Earth's dark umbra. The color and brightness of the totally eclipsed Moon can vary considerably from one eclipse to another. Dark eclipses are caused by volcanic gas and dust which filters and blocks much of the Sun's light from reaching the Moon. But since no major volcanic eruptions have taken place recently, the Moon will probably take on a vivid red or orange color during the total phase. After the total phase ends, it is once again followed by a partial eclipse as the Moon gradually leaves the umbral shadow.
The total phase of a lunar eclipse is called totality. At this time, the Moon is completely immersed within the Earth's dark umbral shadow. During the February 20 eclipse totality will last just under 50 minutes.

A total eclipse of the Moon occurs during the night of Wednesday, February 20/21, 2008. The entire event is visible from South America and most of North America (on Feb. 20) as well as Western Europe, Africa, and western Asia (on Feb. 21). During a total lunar eclipse, the Moon's disk can take on a dramatically colorful appearance from bright orange to blood red to dark brown and (rarely) very dark gray.

This is a great opportunity to record this event using photography... Let's do it!

Read more at NASA website...

Since August 24 until October 13, 2007 Casa Escuté Gallery in Carolina Puerto Rico will exhibit "El Encanto de Mi Isla".
Photographic collection of recognized Puerto Rican photographer Salvador Alicea who brings a set to us of fine art photography in which he stands out the beauty of our flora and what we could call the Puerto Rican tipología. Both subjects are complemented like wanting to affirm to the subject, not like unconnected, rather, like integral part of  the nature. There is a clear preoccupation by environmental and the urgency of its defense, before a modern world more and more alienated of that necessity. A world, that is far away of that necessary and essential symbiosis for the own human survival.

Leer mas de: Photo Expo 2007...