I have absolutely no idea what process engineering is. But from now on whenever hear that word I'm going to think of this. And so should you.
3 U Penn students developed the µWave (microwave, get it?), an Arduino based kitchen hack that plays Youtube videos while you wait for noms. Once you set the cooking time the program goes to Youtube and finds a highly-rated video for the exact length. Read more about it at the project's website.