We all know of the moisture contained within air, commonly referred to as humidity. Where I am it’s typically on the low side which has its advantages (evaporative cooling works a treat here) although it does tend to make any winter cold feel like it’s a frozen knife cutting through your very being. High humidity on the other hand gives rise to some potential applications that you might not have considered before like being able to extract drinkable water directly from the air that surrounds you:http://www.youtube.com/watch?v=FWwii1dX4v8
What’s interesting about this particular idea is that it’s actually been around for quite some time in the form of consumer level devices. I remembered reading about them being available in Japan almost a decade ago and whilst the scale of the billboard vastly surpasses those little water coolers the technology that drives them is essentially the same.
Indeed the technology is so mature that NASA makes use of a very similar system to extract water from the atmosphere contained within the International Space Station which was installed during STS-126. Theirs also has the awesome (although some may say disgusting) ability to process urine back into potable water which allowed the ISS to expand its total crew from 3 to 6. Due to the shuttle’s retirement though such crew levels haven’t been sustained for a while although that could change in the near future.
Isn’t it fascinating to see how far and wide technology like this spreads?