Astronauts wear special device on their ear , why?
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15
Astronauts wear special device on their ears, just becoz it is essential that they remain in constant communication with the rest of the crew in space.
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36
This is so becoz sound always needs a medium to travel
In space there is no medium as there is vaccum all around so the astronauts wear a device in their ears to communicate with each other
In space there is no medium as there is vaccum all around so the astronauts wear a device in their ears to communicate with each other
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