when they land , so they can communicate with each other.
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The term "Walkie Talkie" is a colloquialism which refers to a hand portable transceiver. Since every spacesuit is fitted with a hands-free transceiver then it is fair to say that they are always using one when suited up.
Sound cannot travel through the vacuum of space, but radio waves can.
yes they can communicate they have to
Two astronauts sitting in the same space ship can communicate by mouth ... at least while it's full of air ... or by passing notes. As soon as they put on their space suits, though, or if they feel like talking to anyone on earth or in another spaceship, radio is the only way. However, they could revert back to "archaic" technologies like sign language or perish the thought semaphore.
two way radio, the same thing that pilots use
sound needs something to travel through and space has no air for it to travel
There is no air on the moon. Sound waves only propagate through a medium, such as air, water, etc. Sound waves cannot propagate through a vacuum, therefore the astronauts had to use radios to speak to each other.
Radio is the only way we have of communicating with astronauts or machines in space.
So they can talk to each other and Earth, even though there is no air.Astronauts have radio transmitters on moon as they cannot communicate with each other.Sound cannot travel if there is no air. As there is no air on the moon astronauts need radio transmitters when they are on moon.
They have radio.
Firstly, neither astronauts or radio existed in ancient times. Secondly, radio has always been used by astronauts and continues to be so, because it is the only thing that works across the distances and through the vacuum.
Sound waves need air or another material to travel through, or they go nowhere. Astronauts do their job in places without air, so they couldn't be heard by simply talking.
No, during the Apollo missions radio contact was cut off when astronauts orbited behind the Moon.
i think they communicate by radio
They communicated by radio.
Indeed! You can't hear what's going on around you, but you can hear other astronauts through their radio.
Astronauts when they do not work, sleep, or as in the Skylab had a day for having a wash and clean up, they had radio work as well.
Nixon
yes they can communicate they have to