I've always been under the understanding that sound can't travel in a vacuum but in this case that doesn't apply since the 10,000 lb reverse thrust engine was directly behind the astronot which means the sound and vibrations had the LEM and air within the LEM and the space suits as media through which to propagate. Yet you hear no vibrations, not a hint of nervousness, etc. despite their being in an untested environment using an untested engine when not a single astronot could successfully land the simulator lander on earth a single time.
Yeah and even according to NASA the combustion was so corrosive that the engines could never be tested, so they go all that way and spend all those hours on the moon knowing that when they try to liftoff they're taking a leap of faith that the engine is even going to fire correctly.
rockets work fine in an atmosphere ... if you would fire a rocket in space you would turn around 360° into infinity & beyond ! ( buzz lightyear style )
they never went there . it was all part of the program . ( one world order after an alien threat )
werner von brauns tombstone
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fremar ago
can we hear sound in space ?
then again , the lack of emotion in the voices of the astronauts while landing on the moon for the first time in human history ...
blackguard19 ago
I've always been under the understanding that sound can't travel in a vacuum but in this case that doesn't apply since the 10,000 lb reverse thrust engine was directly behind the astronot which means the sound and vibrations had the LEM and air within the LEM and the space suits as media through which to propagate. Yet you hear no vibrations, not a hint of nervousness, etc. despite their being in an untested environment using an untested engine when not a single astronot could successfully land the simulator lander on earth a single time.
fremar ago
they used an engine that needs air to combust in a vacume ... the lack of excitement and nervousness is very telling indeed.
blackguard19 ago
Yeah and even according to NASA the combustion was so corrosive that the engines could never be tested, so they go all that way and spend all those hours on the moon knowing that when they try to liftoff they're taking a leap of faith that the engine is even going to fire correctly.
fremar ago
rockets work fine in an atmosphere ... if you would fire a rocket in space you would turn around 360° into infinity & beyond ! ( buzz lightyear style ) they never went there . it was all part of the program . ( one world order after an alien threat ) werner von brauns tombstone