Manned flights on the orbital stations
In the first decade of the era of manned spaceflight duration increased from 108 min to 18 days. Made in this period, medical and biological research (in the Russian ships “Vostok”, “Voskhod”, “Union”; in the U.S. project “mercury”, “Gemini”, “Apollo”) have proved the possibility of relatively short-term (up to 2-3 weeks) stay safe man in the space flight environment and active activities outside of the ship.
The most significant changes in the major systems of the human body were observed after flights. They were shown to decrease the body’s resistance to physical and orthostatic stress; impaired coordination of movements and regulation of the vertical posture; a reduction of body weight, hydration of the body, decreasing the volume of blood plasma and erythrocyte mass; asthenia. These changes in General increased with increasing duration of space flights and after flights, lasting 14 to 18 days, were practically significant.
Post-flight revealed improvements of indicated that to further increase the duration of flights you need to apply a system of appropriate protective and preventive measures that will facilitate adaptation of the human body to terrestrial conditions after the completion of the flight. Continue reading
“Look at the Earth from space” — many believe this is his dream, and I want to say that it is real. For this you will need some kind of billion. And before you the most exclusive in the world tour. Of course, tours offer only a couple of times a year and extensive training is needed, but in any case should not stop the applicant unreal adventures.
So, let’s go directly on the tour:
Space tourists go to the destination to the manned Soyuz spacecraft. Not to say that you will fly in comfort, but to the very door of the “hotel”. The flight will take approximately 6-7 hours, but the road back is shorter by almost 2 times.
Also there is another way – it is suborbital flights. You climb to a height of about 100 km 5-6 minutes of weightlessness and back to Earth. It’s not as interesting as a few days, for example, on the ISS, but still exciting and also much cheaper. The price hovers around one million rubles. Agree – it is significantly different from full-fledged space flight. Continue reading
Solar system — the planetary system that includes a Central star — the Sun — and all the natural space objects orbiting the Sun. It was formed by gravitational contraction of the dust cloud around is 4.57 billion years ago. Note: the sun is not a planet.
Planets of the solar system in order:
Click on the button above. to start an interactive 3D map of the planets of the solar system (opens in new window)
Pluto is the decision of the MAC (international Astronomical Union) no longer applies to the planets of the Solar system, and is a dwarf planet and even inferior in diameter another dwarf planet Eris. Designation 134340 Pluto.
Scientists have put forward many versions of the origin of our Solar system. In the forties of the last century Otto Schmidt put forward the hypothesis that the Solar system arose because the cold dust cloud attracted by the Sun. Over time the cloud formed the foundations for future planets. In modern science it is theory that Schmidt is the principal. Continue reading