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How does the ISS stay in orbit? Explain using relevant physics concepts why the ISS astronauts...

How does the ISS stay in orbit?

Explain using relevant physics concepts why the ISS astronauts practice underwater for their task of assembling the ISS in a low Earth orbit (LEO)? How similar do you think is moving under water to moving in the ISS? What are some important differences?

Science   Advanced-Physics   
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Answer #1

Very small air resistances at the altitude of the ISS. this causes the ISS to lose upto 5cm/s of velocity of each day.

Everyone knows that body works very differently underwater, objects can move easy and feels light and tends to float..  Similarly how it feels to be in the microgravity of space.

Astronauts dive to the bottom of 12m deep tank called Neutral Buoyancy Laboratory(NBL). ITs simulates the conditions close to the weightlessness of space. sapces projects are tested underwater before it goes into space, space walks are also tested underwater

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