On April 12 the whole world celebrates Day of aircraft and Astronautics.
This is a special day – a day of triumph of science and all those who are today engaged in the space industry.
Russia marks cosmonautics Day in commemoration of the first space flight by Yuri Gagarin. The holiday was established by decree of the Presidium of the Supreme Soviet of the USSR dated 9 April 1962.
April 12, 2010 isposed 49 years since the first flight of man in space. And did it our compatriot Yuri Gagarin. 108 minutes spent in space opened the way for other space explorers. For a short period of time since the first flight into space man has visited the moon, explored almost all the planets of the Solar system, but the first flight was the most difficult and dangerous.
But the confidence and optimism, the desire to conquer space overcame all obstacles. Addressing all the inhabitants of the Earth before launch on April 12 1961 Yuriy Alekseevich said, “Dear friends, relatives and strangers, countrymen, people of all countries and continents! Continue reading
Radiation risk for astronauts (radiobiological rationale)
The book covers a fairly wide range of materials concerning the sources of cosmic rays affecting astronauts in the implementation of interplanetary and orbital space flight, the quantities of the doses, the reactions of individual systems and the whole organism of animals and humans, and changes its stability when the complex character of radiation exposure in space.
The results of a 14-year experiment on a large lot dogs with simulation values of the doses and nature of dose distribution in time, which will affect astronauts during the flight to Mars. The considered models of formation of radiation damage in the hematopoietic system and the level of the organism during long exposures with varying dose rate, and the model of radiation mortality rate of mammals, describing accelerated aging and the changing age-specific mortality rates in a dose-and dose rate radiation exposure.
The book presents the algorithms and results of calculations of the radiation risk in the process of interplanetary and orbital missions throughout the life of astronauts, as well as data on possible sacramentoa life expectancy. The new approaches to the regulation of radiation exposure and justifies the new lower acceptable dose to astronauts during flights and during the whole professional activity. Continue reading
The history of cosmonautics in the “city of aviation” starts with the building of the Museum. It is an expressive building with a dome, inside which there is the planetarium, one of the outstanding examples of futuristic Soviet architecture. About and imagined future in space at the time. All-Union popularity of the building took on, when his image graced millions of matchboxes Kaluga factory “the Giant”.
To the creation of the Museum of Tsiolkovsky in the 60-ies of the last century had a hand in other space heroes — Gagarin and Korolev. The latter made the most notable contribution: the basis of the collection became the subjects admitted in 1967, from the design office Queen: missiles, propulsion, space vehicles, measuring devices, tools, spacesuits, food warmers. And Yuri Gagarin literally laid the first stone in the Foundation of the Museum — just two months after the first flight into space.
The exposition begins with this event, and from the earliest human attempts to break away from Terra firma. The rocket “the East” is preceded by Chinese gunpowder rockets, and kites, Lomonosov rotary-wing machine, aircraft Mozhaysky and, of course, the works of Tsiolkovsky. Continue reading