Antarctic

The Antarctic (US English /æntˈɑːrktɪk/, UK English /ænˈtɑːrktɪk/ or /æntˈɑːrtɪk/ and /ænˈtɑːrtɪk/ or /ænˈɑːrtɪk/) is a polar region, specifically the region around the Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica and the ice shelves, waters, and island territories in the Southern Ocean situated south of the Antarctic Convergence. The region covers some 20% of the Southern Hemisphere, of which 5.5% (14 million km²) is the surface area of the continent itself.

Geography

The maritime part of the region constitutes the area of application of the international Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR), where for technical reasons the Convention uses an approximation of the Convergence line by means of a line joining specified points along parallels of latitude and meridians of longitude. The implementation of the Convention is managed through an international Commission headquartered in Hobart, Australia, by an efficient system of annual fishing quotas, licenses and international inspectors on the fishing vessels, as well as satellite surveillance.

Antarctica

Antarctica (US English ⁱ/æntˈɑːrktɪkə/, UK English /ænˈtɑːktɪkə/ or /ænˈtɑːtɪkə/ or /ænˈɑːtɪkə/) is Earth's southernmost continent, containing the geographic South Pole. It is situated in the Antarctic region of the Southern Hemisphere, almost entirely south of the Antarctic Circle, and is surrounded by the Southern Ocean. At 14,000,000 square kilometres (5,400,000 square miles), it is the fifth-largest continent in area after Asia, Africa, North America, and South America. For comparison, Antarctica is nearly twice the size of Australia. About 98% of Antarctica is covered by ice that averages 1.9 kilometres (1.2 mi) in thickness, which extends to all but the northernmost reaches of the Antarctic Peninsula.

Antarctica, on average, is the coldest, driest, and windiest continent, and has the highest average elevation of all the continents. Antarctica is considered a desert, with annual precipitation of only 200 mm (8 in) along the coast and far less inland. The temperature in Antarctica has reached −89.2 °C (−128.6 °F), though the average for the third quarter (the coldest part of the year) is −63 °C (−81 °F). There are no permanent human residents, but anywhere from 1,000 to 5,000 people reside throughout the year at the research stations scattered across the continent. Organisms native to Antarctica include many types of algae, bacteria, fungi, plants, protista, and certain animals, such as mites, nematodes, penguins, seals and tardigrades. Vegetation, where it occurs, is tundra.

United States

Coordinates: 40°N 100°W / 40°N 100°W / 40; -100

The United States of America (USA), commonly referred to as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major territories and various possessions. The 48 contiguous states and Washington, D.C., are in central North America between Canada and Mexico. The state of Alaska is in the northwestern part of North America and the state of Hawaii is an archipelago in the mid-Pacific. The territories are scattered about the Pacific Ocean and the Caribbean Sea. At 3.8 million square miles (9.842 million km²) and with over 320 million people, the country is the world's third or fourth-largest by total area and the third most populous. It is one of the world's most ethnically diverse and multicultural nations, the product of large-scale immigration from many countries. The geography and climate of the United States are also extremely diverse, and the country is home to a wide variety of wildlife.

Antarctic Snow Cruiser

The Antarctic Snow Cruiser was a vehicle designed from 1937 to 1939 under the direction of Thomas Poulter, intended to facilitate transport in Antarctica. The Snow Cruiser was also known as "The Penguin," "Penguin 1" or "Turtle" in some published material.

While having several innovative features, it generally failed to operate as hoped under the difficult conditions, and was eventually abandoned in Antarctica. Rediscovered under a deep layer of snow in 1958, it later disappeared again due to shifting ice conditions.

History

Design and construction

On April 29, 1939, Poulter and The Research Foundation of the Armour Institute of Technology showed the plans to officials in Washington, D.C.. The Research Foundation would finance the cost and oversee the construction, and lend the vehicle to the United States Antarctic Service. Work began on August 8, 1939 and lasted for 11 weeks. On October 24, 1939, the vehicle was fired up for the first time at the Pullman Company just south of Chicago and began the 1,640 km (1,020 mi) journey to the Boston Army Wharf. During the trip, a damaged steering system caused the vehicle to drive off a small bridge on the Lincoln Highway and into a stream near the town of Gomer, Ohio near Lima, Ohio, where it remained for 3 days. After it arrived in Boston, it departed for Antarctica on November 15, 1939 aboard the ship the North Star.

William Scoresby

William Scoresby (5 October 1789 – 21 March 1857), was an English Arctic explorer, scientist and clergyman.

Early years

Scoresby was born in the village of Cropton near Pickering 26 miles south of Whitby in Yorkshire. His father, William Scoresby Senior (1760–1829), made a fortune in the Arctic whale fishery and was also the inventor of the barrel crow's nest. The son made his first voyage with his father at the age of eleven, but then returned to school, where he remained until 1803.

After this he became his father's constant companion, and accompanied him as chief officer of the whaler Resolution when on 25 May 1806, he succeeded in reaching 81°30' N. lat. (19° E. long), for twenty-one years the highest northern latitude attained in the eastern hemisphere. During the following winter, Scoresby attended the natural philosophy and chemistry classes at Edinburgh University, and again in 1809.

Career

In his voyage of 1807, Scoresby began the study of the meteorology and natural history of the polar regions. Earlier results included his original observations on snow and crystals; and in 1809 Robert Jameson brought certain Arctic papers of his before the Wernerian Society of Edinburgh, which at once elected him to its membership.