Question: #1 Wouldn't the space suits used on Mars have a heating device built into them, being it's so cold on Mars? Why did he have to rely on the RTG for heat in the rover? #2 Just before lifting off from Mars we see Watney cutting his hair and beard. He appears to be in another Hab, but when he's approaching the MAV in the rover, there's no Hab in site.
Question: The gravity acceleration on Mars is 3.71/ms2 a little more than double our Moon and approximately 1/3 of Earth gravity. For this reason every falling object or walking/running people or bouncing object should be attracted to Mars in a "slow motion" fashion. Watching the movie I didn't notice such slow-motion effect. Was that a deliberate error in order to avoid huge additional costs and probably making the movie less tedious?
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