June 2009

PROBLEM LAND - DIFFERENT PERSPECTIVES

Other contributions:

NASA has been using a spacecraft called Deep Impact to create a series of videos from the Earth and Moon from a distance of about fifty million kilómetros.En videos can be viewed as the Moon passes in front of our planet. The first was filmed in visible light and shows our planet as seen by the human eye, ie the actual colors. The second video was made using special filters that highlight the infrared radiation. This makes them stand out in red the areas of the earth's surface are covered with vegetation.

Source:

http://astroescuela.blogsome.com/2008/07/17/desde-50-millones-de-kilometros/

Tuesday, June 2, 2009

Vegetable Stir Fry Nutrition Information

SUN

often hear people say that the Sun, the star around which orbits our planet is made of fire. In fact, this description what is in fact the sun is not very accurate. Seems to fire but is not.
Our sun and all stars, is composed of a state of matter called plasma. The plasma is like a soup of subatomic particles, ie particles smaller than atoms, unlike the fire that is just a very hot gas produced by a chemical reaction. In stars there is a chemical reaction, rather that there is something called nuclear fusion, a very violent which makes the other atoms are based producing and generating huge amounts of energy on the road.

These filaments coming out of the sun are called solar prominences. They are giant plasma jets emerging from the Sun and sometimes can have hundreds of thousands of kilometers long. The jets come from the Sun and are again attracted to the solar gravitational force creating these interesting space somersaults.

Source: http://astroescuela.blogsome.com/category/estrellas/