Andy Weir's novel The Martian has struck a chord with an audience of readers that extends far beyond the traditional sci-fi demographic. I think that part of the book's broad popularity stems from the fact that Weir never leaps too far ahead of the current human condition. This makes his storyline approachable for readers who would normally dismiss the sci-fi genre as too fantastical, myself included.
Much of what grounds the story is the technology that is referenced throughout. There are no Zenon alien zappers or antimatter toothbrushes. In fact, many of the systems found on Weir's imaginary Martian outpost are actually in use on the International Space Station (ISS) today. Weir sometimes extrapolates the capabilities of these systems into the future, but he invariably remains faithful to the science at their core.
This is the first in a short series that will examine a few of these real-life space systems that are referenced in The Martian. The intent is not to compare any differences between the actual components and Weir's versions. What would be the point? Although he aimed for (and largely achieved) technical accuracy, Weir had creative license to write about death rays powered by peanut butter if he chose. So there's no point in splitting hairs. Rather, the goal here is simply to provide greater insight into the life-sustaining systems that that are referenced in the book and relied upon by astronauts and cosmonauts every day.
Today, we'll discuss the use and recycling of water in manned space missions.