Nature Workshop Contents covered in the session 9 (10/12/2009)
2009-1 º December.
Wednesday, December 16, 2009
Air Duster Refillable
present on this occasion the focus at present bird, and three species, two large birds and a small bird.
Since the beginning of November came early to Cartagena and throughout this month and so far in December, two copies remain in the Navy the Carmolí. This crane (Grus grus ), one of the largest species among the birds flying in Spain. Moreover, there is the peculiarity that the two copies, one looks slightly melanoma, emphasizing its dark plumage of his mate next to more "orthodox."
Also in December so far, there have been three observations Alpine Accentor (Prunella collaris ) from our partner Juan Antonio Capel Workshop, along the coasts of Cartagena Sierras.
This species, in Iberian Peninsula, nests in the mountains, divided by all the high hills, in winter descends down to the level of the sea and travels significant distances from their breeding grounds .
Finally, a spectacular group of more than 2,000 cormorants (Phalacrocorax carbo) was observed on December 9 in waters of the Mar Menor.
According to records kept by ANSE of this species, there is a higher figure of one group in our region.
Structure of the Universe. The Solar System.
The Universe, our big house, how is it structured?. Are we living in "buildings", "duplex" or cosmic chalets?. If we take into account the distances with which astronomers measure the distances between celestial bodies (ly), would tend to think quickly that our planet is like a house in the country, far from our closest neighbors. But when we delve into the distance, not only our closest neighbors, but the rest of the neighborhood, that distance is so great that we will realize that if there is a contagious distribution between the various celestial bodies. Thus we can describe the universe as the individual to the galaxy, and from it raise or lower our approach or scale, and understand the organization of matter in the cosmos.
Let us go first, and have at our galaxy, the Milky Way, in a neighborhood of about 40 nearby galaxies (local group). The best known is Andromeda which, together with our Milky Way are the most important (large and bright). These groups, in turn, come together in "clusters" of thousands of galaxies.
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Hundreds or thousands of galaxy clusters gravitationally interacting with each other, form the "superclusters".
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And I superclusters are arranged in "filaments." Now, finally, we understand that the superstructure called "Universe" would be comparable to a large sponge where the filaments of galaxies are the "fabric" of our sponge. On the other hand, can we imagine the size of "bubbles" of our great sponge?.
This description overwhelms us even more if we think that the latest ideas of the scientists suggest that the universe "atomic", that consists of atoms, the only thing we know we can directly observe and measure, and we just described, could represent only 4% of all matter and energy that holds the Universe. The rest, called dark energy (73%) and dark matter (23%).
But now we go down the ladder and we the Milky Way, our galaxy, comprising between 200 and 400 billion stars, distributed in the form of a large spiral, with five main branches.
In turn, each star, will have its celestial bodies orbiting around it. Ours, the sun, has 8 planets (from Mercury to Neptune), dwarf planets (like eg. Pluton) and other small bodies: asteroids, meteors, comets, ...
These small bodies are distributed in:
- Asterioides Main Belt (between Mars and Jupiter.)
- The Kuiper Belt, made up of objects located beyond Neptune.
- Oort Cloud, spherical cloud of comets and asteroids hypothetical (ie, not directly observed) located on the edge of the solar system, almost one year
sunlight 
collybita Phylloscopus identification.
And we ended the workshop by learning to recognize the Common Chiffchaff (Phylloscopus collybita), very abundant in winter in our area.
In these cold months is the only species that can be seen, but the migratory, and in summer, we visited three other Warbler species, the Musical (Phylloscopus trochillus), abundant in migration; Whistling (Phylloscopus sibilatrix), much more scarce and in migration, and the Papialbo (Phylloscopus Bonelli), whose phenology is contrary to the policy, it only gets to spend the warmer months and nest in our region.
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