OK, so this is not really a challenge but more of a questionaire (sorry to disappoint you). I was going to ask this question in this room and the engineering room to see both sides of the story. But hopefully we will get plenty of both in here. Since I am only posting it in this room, please give a few word background as to your education (student / graduate - physics / engineering / chemistry / ect). The Situation: You are about to be stranded on an island in the middle of nowhere. There are no buildings, commercial power sources, or other people. Assume it is a normal island (located in the middle of nowhere is normal I guess) with the typical animals and landscape. All you get to take with you is normal street clothes you will be wearing (jeans, t-shirt, shoes, ect), one book of your choice, and one object (such as a fork, knife, ect) without a power source (meaning if you take a radio, you dont get to take batteries). You will have to survive roughly 30 days before you are picked up unless you find a way to signal for help. But in 30 days a rescue party will retrive you if you are still alive. What book would you take with you and why? What object would you take with you and why? I am posting this in hopes of getting some good thoughtful answers but I think the sarcastic ones will be worth reading too.