Severnij Polyus Prezentaciya

May 21, 2002 - On this day in 1937, Russia set up a camp on an ice-floe and called it Severny Polyus /'North Pole'/ station. Four people -- Ivan Papanin, Pyotr.

Ati mobility radeon hd 5650 drajver windows 7. Contents • • • • • • • • Description [ ] Larva [ ] The green, mature caterpillar is unique among Australian butterflies. A yellow line runs along each side, and the back is marked by one or more crescent shapes. The green head has two pairs of long horns besides a smaller set behind the head-scale. Adult [ ] The upperside is boldly marked in black and white, with narrow blue-grey margins, and specks of orange on the hindwings. The prominent double-pointed tails gives the butterfly its name. The underwing of both sexes are marked in complex patterns of red and yellow brown, against on a white background, bordered by black outlines and an orange edge to the hindwing. Range [ ] Though formerly limited to northern and eastern Australia, it expanded its range during the 1970s.

It may now be found in southern New South Wales, Victoria and eastern South Australia, but it is not permanently established. Its residence in the southern regions depends on mild winters, and availability of their food plants. It was first noted in Adelaide in 1973, where it remains rare. Food plants [ ] The larval food is the foliage of certain native and introduced tree species.

The native species include wattles,,, and species, while the is an exotic species that is also favoured. Adults may feed on the sap of trees, rotting fruit and moisture from dung. Habits [ ] These fast, strong flyers are mostly seen in the dry season. Males frequent hilltops, and establish territories, by perching head down, some 3 m up in trees, while they move the hindwings move up and down.

Two or more generations may be produced annually. Gallery [ ] •.

May 21 is the 65th anniversary of the world's first floating station. On this day in 1937, Russia set up a camp on an ice-floe and called it Severny Polyus /'North Pole'/ station. Four people -- Ivan Papanin, Pyotr Shirshov, Yevgeny Fyodorov, and Ernst Krenkel -- spent 274 days on the ice-floe, exploring the Arctic basin /which was, at that time, a 'closed book' for Russian scientists/ and sending in weather reports every 6 hours, related Valery Lukin, the head of the Russian Antarctic Expedition. The second floating station was set up in 1950, after World War II. Since 1954, such stations were set up on a regular basis. During the 'cold war' period, Russia and the USA regarded the Arctic basin as the most likely theater of war operations and instructed their people on floating stations to spend less time on scientific research and more on protection of their country's defence interests. Specialists were engaged to heed to the needs of the undersea fleet and work out methods of detecting the enemy's submarines in Arctic waters.

The last floating station, Severny Polyus-31, was closed in 1991 because of the country's financial crisis.