The Martian

The Martian

Author: Andy Weir Listening Length: 4h 59m
Fantasy Read Online

Six days ago, astronaut Mark Watney became one of the first people to walk on Mars. Now, he’s sure he’ll be the first person to die there. After a dust storm nearly kills him and forces his crew to evacuate while thinking him dead, Mark finds himself stranded and completely alone with no way to even signal Earth that...

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Chapter 5

I’m still cowering in the rover, but I’ve had time to think. And I know how to deal with the hydrogen.

Here’s the solution:

Hydrogen is dangerous because it can blow up. But it can only blow up if there’s oxygen around. Hydrogen without oxygen is harmless. And the regulator is all about pulling oxygen out of theair.

There are four different safety interlocks that prevent the regulator from letting the Hab’s oxygen content get too low. But they’re designed to work against technical faults, not deliberate sabotage (bwa ha ha!).