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
The U.S. space Agency plans to launch a probe, equipped with a solar sail. He will leave earth orbit and go to the distant asteroid due to the pressure of sunlight. Like the ships of the discoverers of the 15th century, in 2018, a small space probe will unfurl the sail and start a journey to a faraway asteroid, marking the beginning of a new phase in space exploration.
The idea of using solar sails for space flight was proposed almost a hundred years ago, Soviet rocketry pioneer Friedrich Zander. It was based on the fact that Photons of light can exert pressure on the illuminated surface, giving him his momentum. Therefore, if you expand behind the ship a giant mirror, his speed will gradually increase without using fuel.
However, the first experimental devices were established only at the very end of the twentieth century. This is because space sailboats should be very easy, and their embodiment in life became possible only after the emergence of a truly compact electronics. 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