Jump Sayings For Track

The fish fauna of regione antartica è limitata a sole 274 specie, 49 famiglie. Nonostante che l’oceano meridionale rappresenti il 10% dell’oceano della terra, questa regione ospita solo l’1% della fauna ittica del mondo che è costituita da 25000 specie.

La fauna antartica è dominata da tre discendenze: Lipariti (snailfishes – “pesci soffici”), Zoarcidi (eelpouts, “pesci labbrone”), sia bentonici che di grandi profondità, e Nototenioidi.

Nototenioidi

are 35% of the species in the waters under the ice and occupy 46% of the fund that is the habitat of the water column. This exceptional saturation of biomass from a single group is attributable to the fact that occupy niches usually occupied by different groups in temperate waters. The Antarctic environment is characterized by low temperatures, high seasonal variations, food shortages, especially during the dark winter months.

These conditions require special adaptations to freezing, the need to accumulate energy reserves during the summer months, strategies for "saving" (behaviors stand still and wait), low metabolism and seasonal reproductive cycles ....

Two questions: When you started this evolutionary success and why this group?

The isolation of Antarctica from other continents has led to a general cooling water from 16 ° of the late Eocene, with ups and downs, but with a trend line has reached the 4-5 ° of the late Miocene , then to fall sharply polar current values \u200b\u200b(around -2 ° C).

The extinction of an entire fauna is associated to both the fall in temperature is habitat loss due to this extensive glaciation.

According to the theory of evolution the ancestors of these fish had to have some genetic trait more conducive to adjustment and it seems that this feature can be traced in the evolution of these fish hemoglobin.

Their ability to use oxygen is very special.

They have only 10% of the plasma, which normally has a red-blooded fish, and this adaptation is favorable because it reduces the liquid inside the body, in a cold water that is more oxygen for its low temperature. However, these fish are able to synthesize, in their evolution, some proteins that function as antifreeze.

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Fossils in Antarctica Antarctica

The ANDRILL project seeks to reach with the drilling of the middle Miocene geological period, which corresponds to about 17 million years ago. In those sediments
trying to find out how the environment reacted to the Antarctic glacial period "hot" in the Miocene, before moving to the cycles as cold as that which characterizes our age.
you think what types of fossils could be found in core extracted from underground Antarctic?

Trilobites Dinosaurs macro marine fossils Micro marine fossils None I have no idea

Applications sent to some pages that are in the school's website Stefanini, to return here simply close the new browser window that opens at each link.

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Altimetry

by Alessi, Donika, Jessica and Paul Third in Class E of Coleman Middle School (home of St. Bona) Treviso here as they have solved the problem of determining the average altitude dellAntartide, the continent "more high ".

How did they do?

They had as the difference map of Antarctica you find below, have built an oriented line that crossed the South Pole along the meridian 77 °, and have made every cm (abscissa) 's relative altitude curves of level.
then determined the average elevation.

Europe for example, despite the presence the Alps and other mountain ranges have an average altitude of 250 meters (approximately).






difference Map of the Antarctic continent:

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Gondwana

ancient continent Gondwana ...... that was contained in a part of the land .....

The animation shows how this single clod of earth's crust is broken up and moved about 200 million years, giving rise to radical changes in the crust and seabed.

Antarctica is a bit 'the center of this transformation.

theory that explains how this transformation might have occurred is "continental drift" AL Wegener, dates back to 1910.

The video requires DivX to be seen and is a reworking of material on this website:

http://www.discoveringantarctica.org.uk/

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Finally penguins

The poster in that I am attaching picture shows the life cycle of Emperor penguins in the Ross Bay.

For those who have problems with English:

In the right corner: the colony breeding, feeding, dispersal, changes pens

1. June: spawning, 65 days of incubation eggs by the male, the colony gathers together.
2. August the chicks are hatched
3. October: independence of the chicks, adult trips to feed the chicks, feed weekly
4. December: dispersion and departure of chicks
5. January: wet feathers adults
6. March: Adults - feeding after the suit, return to the colony
7. April: arrival to the colony

Here are some examples wandering around the tower of ANDRILL (photos by Simon Pierdominici - INGV Rome).

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The Midnight Sun The drilling rig

At the latitude of McMurdo sun was never ends: it remains above the horizon for all 24 hours.


The two pictures depict the light present at 24 of November 12. Obviously the sun is not easy to photograph: it is located just behind the sign for the New Zealand Scott base.

Why, despite being so long enlightened in the months from September to March, the ice is affected so little? Easy 85% of solar radiation is reflected from the white surface, such as a tropical forest while it reflects only about 12%.

Also the sun at this latitude is not very high above the horizon so many solar rays pass through the atmosphere, illuminating, but not reach the ground to heat: a question of inclination.

icy waves.

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The drilling rig is located, obviously under the white cloth that protects all from the weather.

The video shows the most important parts: the system that mixes and then inject the cement that creates the hole walls, which slide down the metal pipe that carries the carrots, currently more than 6 cm in diameter, the tower and the mechanism of rotation of the drilling head.

The piercing tip that you can see in the picture is obviously hollow.

the first step is to create a cylinder of larger diameter of the core extracted. in this cavity is injected with a special resin cement that they do harden quickly. It is thus built a wall to prevent landslides in the rock around the cavity itself.

Only later, another tip creates the carrot that will be extracted.

workers you see are all New Zealand.

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"The Drill site" - The drilling site in Antarctica


We arrived at the site of perforation, located on Sea Ice (frozen sea) about 40 miles from McMurdo, the front of the Blue Glacier, about 8 feet above sea ice.

The track is marked by the flags, though each car is equipped with a radio transmitter and GPS, just in case. Every two people have a lot of emergency equipment (tent, sleeping bag, for cooking, food).
In Antarctica every time you go out far enough from the base should be autonomous for at least two days.

The site is divided into two four hundred yards distant from each other: the tower and container workshop, the village with container board - mess.

On this page you enter in the laboratories where the carrot 6 meters long is cut into cylinders of 1 meter, photographed for the entire lateral surface with a scanner, and canned for further transport to the elicotterro. As you will see from the video transport over land, although cheaper is not suitable.

are also carried out chemical analysis of water found in the carrot.

These jobs are done continuously, ie 24 hours 24.

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The 500

For fans of cars: the New Zealand Scott base, a few miles from McMurdo, I found a book published recently that describe the success of the Fiat 500 in New Zealand 60s.

The car, affectionately known "Child", was produced in New Zealand is in its base model in the station wagon version.


News
more detailed publication by going directly to the website of:

LINK

One of these cars is was taken in Antarctica, you see it photographed in front of Hut Point, with its regulatory chains on the rear wheels.

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Hut Point

Hut Point is the first landing on Ross Island English explorer Robert F. Scott, who arrived here in 1901 with 25 crewmen.

remained two years in the failed attempt to reach the South Pole.

In the film we see the landscape of the Ross Sea, still frozen (Nov. 1 - 1:30 am in the morning).

You can see the typical scale of the sea ice very dangerous to go as they may from time to time crevasse, or break under your weight if the summer is approaching.

The darker spots, which absorb more light, transparent ice is just not covered with snow.

The wooden cross was erected by the men of Scott in 1902 remember a mate slipped them into the ocean in the summer, during a storm, whose body was never found.
It 's the first died of McMurdo Bay.

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Fantasy and Science in Antarctica Volcanoes

imagination, creativity, ability to see beyond reality are qualities that can not fail at those who do scientific work.

problems are solved by knowing the facts, rules, laws of phenomena but also to predict and foresee sapendoli need to understand what is right and what we imagine can go a long way from reality.

Science and Science Fiction are not necessarily two distant worlds, even science fiction can not exist without scientific knowledge.

said that you sent to cover the tracks of this problem .........

One problem

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sea ice, 1.30 am on October 30.