Comments by "Ronald Greene" (@ronaldgreene5733) on "Spark"
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The astronauts move without restriction or difficulty while walking and working on the moon. This however cannot occur in a vacuum. Suit technology hasn't reached the point where an astronaut can be ambulatory enough to permit walking in a vacuum without very stiff and awkward movements or great effort to strain against suit pressure that is multiplied over several hundred square inches for each limb of the suit. 5 psi becomes hundreds of pounds in the leg of a suit for example, and a substantial part of that pressure is working against any movement away from the shape formed under pressure. The same occurs for the smaller arms of the suit, moved by human arms of proportionately less strength. Fingers also move only with difficulty, whose strength drains quickly under the strain so that useful work would be nearly impossible. An advanced form of suit that incorporates a lightweight exoskeleton might be possible, maintaining suit pressure while permitting movement, perhaps power assisted. Clearly, this is not what we've seen so far, while there is evidence of faking some of the space videography even in low earth orbit.
While hammering, we can hear the sound of hammering in the astronaut's microphone though he stands in a vacuum on the moon's surface. We're told the sound traveled through is arm and into his suit having a breathable oxygen mixture. Another astronaut throws an object and we hear the sound clearly as the objects strikes the lunar module -- no arm to conduct the sound into the astronaut's suit. . No other mic was on, other than those worn by both astronauts. .
We expect more name-calling, derogatory language and assumptions in place of any legitimate or genuine response. Prove us wrong. .
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