Hi there and welcome to my cyberhome, I am a geek living in Scheveningen, The Hague, The Netherlands. You can find some code I've written on Git(Hub/Gist) and on the lab page of The National library of the Netherlands of which I am currently the manager. Fe2 stands for Iron, the chemical element which binds us all. Our blood contains Fe2+ to bind the free oxygen from the air, and transport it to our brains. Also the atomic number of the element Fe (ferrum) happens to be my dob: 26.