All right, I know this is the same day as my first blog, but I have something else cool to tell you about. Are you ever annoyed by subway doors? You know, when you wait for everybody to get out and you have to wait to get in. If you don't do this, learn common courtesy. I thought that there could be in-doors and out-doors that have motion sensors that will go off if you don't go in the right door. This you will be made to pay a small fee for. This may seem a little drastic, but this technology is barely elementry to some scientists, most likely; and aren't they always going on about making the world we live in a more comfortable enviroment? If scientists are reading this, I highly reccomend this as an option for subways.