200 words on Space station
Answers
Answer:
A space station, also known as an orbital station or an orbital space station, is a spacecraft capable of supporting a human crew in orbit for an extended period of time that lacks major propulsion or landing systems. Stations must have docking ports to allow other spacecraft to dock to transfer crew and supplies.
The purpose of maintaining an orbital outpost varies depending on the program. Space stations have most often been launched for scientific purposes, but military launches have also occurred. As of 2019, one fully operational and permanently inhabited space station is in low Earth orbit: the International Space Station (ISS), which is used to study the effects of long-term space flight on the human body as well as to provide a location to conduct a greater number and length of scientific studies than is possible on other space vehicles. China, India, Russia, and the U.S., as well as Bigelow Aerospace and Axiom Space, are all planning other stations for the coming decades
Explanation:
Please mark my answer as brainliest.
Answer:
The traffic between the Earth and the space station takes place through rocket-powered space ships, like those described in general in the first part of this book. It may complete the picture to envision such a trip at least in broad outlines:
The space ship is readied on the Earth. We enter the command room, a small chamber in the interior of the fuselage where the pilot and passengers stay. The door is locked airtight from the inside. We must lie down in hammocks. Several control actions by the pilot, a slight tremor in the vehicle and in the next moment we feel as heavy as lead, almost painfully the cords of the hammocks are pressed against the body, breathing is labored, lifting an arm is a test of strength: the ascent has begun. The propulsion system is working, lifting us up at an acceleration of 30 m/sec2, and causing us to feel an increase of our weight to four times its normal value. It would have been impossible to remain standing upright under this load.
It does not take long before the feeling of increased gravity stops for a moment, only to start again immediately. The pilot explains that he has just jettisoned the first rocket stage, which is now spent, and started the second stage. Soon, new controlling actions follow: as explained by the pilot, we have already attained the necessary highest climbing velocity; for this reason, the vehicle was rotated by 90°, allowing the propulsion system to act now in a horizontal direction in order to accelerate us to the necessary orbital velocity.
Very soon, we have attained this velocity. Only some minutes have elapsed since launch; however, it seems endless to us, [given] that we had to put up with the strenuous state of elevated gravity. The pressure on us is gradually diminishing. First we feel a pleasant relief; then, however, an oppressive fear: