The Quindar tones were there because of the button the astronauts had to press made that noise. The noise was there just to indicate that the microphone was being turned on/ off.
And Hustons microphone didnt require a beep as it was an open line
NASA
NASA started the Apollo mission's.
NASA
Apollo 13 was not a shuttle, as it was not reusable.
Pencil and paper, and a radio link back to NASA where they could talk to men with slide rules.
Yes Apollo 13 was built by N.A.S.A.
The USA's NASA
the NASA Apollo 13 mission to the Moon
Nobody died on the Apollo 13 mission by NASA.
Yes, all Apollo missions were conducted by NASA in the US.
NASA has made all the Apollo information available.
NASA Apollo space program, 1966, computer programmer