The author of this, Oona Räisänen, is one of my standard examples of someone who is genuinely a hacker in the proper (by which I mean, the Stephen Levy "Hackers" definition; if you want to use the prior MIT prankster meaning, I won't stop you) sense.

This post of Oona's - http://www.windytan.com/2014/02/mystery-signal-from-helicopt... - in which she extracts, from the audio of footage from a news helicopter, the location of that helicopter, is an excellent example.

Given that someone here recently defined "hacker" to me as "person who can write code", the word is in serious danger of being so devalued as to be useless.