Graphene: The perfect water filter
Water filtration is indeed a key survival technology for humanity in the next 50-100 years, so seeing technology already providing possible solutions to the so-called "water wars" of the future is great!<p>I presume such a filter will also remove all bacteria/etc from the water. So basically, you could grab some water from the Thames, stick it through one of those filters, and drink it. It might lack some minerals, but it won't get you sick.