Nanotechnology appears to be the mot du jour when it comes to finding ways of making flying more environmentally-friendly.
Take, for instance, yesterday's announcement from easyJet that has painted eight of its aircraft with a nanotechnology-based polymer which prevents debris from building up on the surface, thereby reducing drag and fuel burn.
Or last week's announcement from EADS that it has teamed up with Glasgow University to develop a fuel tank for solid hydrogen, again using nanotechnology. If successful, EADS plans to fly an unmanned hydrogen-powered test aircraft in 2014.
So what exactly is this nanotechnology? I did some investigative journalism (i.e I Googled it) to try and get a clearer picture, and the most basic description I could find was that it is "the study of manipulating matter on an atomic and molecular scale".
I don't know about you, but I'm still left scratching my head. Maybe it has something to do with the fact that I haven't studied biology, physics or chemistry since I was 16.
Apparently it's all to do with things that are smaller than 100 nanometres (or one billionth of a metre).
Anyway, I fully expect this word to re-appear on countless press releases in the future so I'm glad I've armed myself with a nanometre of knowledge on the subject.