Apollo 15 EVAs 1 (Irwin descending the LM)

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Uploaded by on Nov 11, 2007

Apollo 15 crew (Scott and Irwin) working on the Moon (Hadley, July 1971).

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Science & Technology

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  • @hunchbacked I mean: Can You hear what they say the whole time? Are You absolutely sure which voices are the astronauts, and which is Huston? Because, between the astronauts there is of course no delay. And, sometime one can start to speak before the other is compleatley finished. That's even heard sometimes in the news, between the person in the studio and a reporter somewhere else in the world.

  • @YDDES

    Are you meaning that they are talking without caring about what the other says?

    What a cacophony, LOL.

    But in that case, they should sometimes speak in the same time, and they don't.

  • @hunchbacked Can You hear every word they say? I can't. As far as I can hear, mostly the astronauts talk to each other. Just at the and Huston is clearly heard.

  • @YDDES

    When they talk to each oher, we should feel the time gaps in the discussion, because each one answers to the other one at the other end.

  • @hunchbacked You are right about the time it takes for the signals, but how many "question/answer" situations are recorded? Even in an ordinary convesation, people start to talk before the other one is completely finished.

  • @YDDES

    No, I don't forget it: if the recording is made on earth, the operator's voice is immediately recorded; but it takes 1.2 second (at least) for his voice to come to the astronaut (the astronaut can't guess in advance what the operator will tell him), and another 1.2 second for the astronaut's reply to come back to earth, which makes a total of 2.4 second (at least) between the recording of the operator's voice and the recording of the astronaut's reply.

  • @hunchbacked YOU forget something: If the recording of the voices was made on Earth, there is no delay of the Capcoms voice. Only of the astronauts. If the recording was made on Moon, it's the other way around. And, sometimes they talked without waiting for an answer.

    No doubt, if NASA had invested so much time, money and effort to fake it, they hadn't made a such imbecill mistake as overlooking the speed of radio signals.

  • @YDDES

    You forget something: The radio signals have to travel both ways: The astronaut talks, what he says takes a little more than one second to come to Houston; the operator answers, and his reply also takes a little more than one second to come back to the astronaut.

    The transmission time between earth and moon has to be doubled.

  • @derekxnl

    The proofs exist, but they are refused by the Apollo advocates.

    It's not because these proofs are rejected that they are not valid!

  • @pt1gard He is in shadow, so he has put his gold visor up. Huston moved the camera mounted on the LEM. The radio signals take less than 2 seconds between Moon and earth.

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