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Author Topic: Discuss: On Mars nobody can hear you scream. Is that really true? And if so, why?  (Read 1800 times)

Offline thedoc

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On Mars nobody can hear you scream. Is that really true? And if so, why?  Plus we ask, can we mix spider and human DNA to make Spiderman?
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« Last Edit: 28/11/2012 18:11:26 by _system »


 

Offline syhprum

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Mars has an atmosphere mostly of CO2 at a pressure 6.5 millibars (Earth 1000 millibars) the speed of propagation of sound is little different in CO2 compared to the familiar O2/N2 mix that we have on Earth so pitch should be little affected.
The problem is not in the transmission but in the generation and reception as human throats and ears would not work well at such low ambient pressures.
If the scream was picked up by a microphone in ones pressure suit and fed to an external speaker and if ones colleague had a microphone outside his suit feeding a headset the scream would get across no problem.   
 

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