I want to start learning ruby on rails. However, I don't know anything about it. Can someone tell me in details, from where should i start, the web is somehow strange, i don't know what to do exactly, what's the difference between ruby and rails?! what should i install at my machine? Please also note that i don't have any experience about it. So if someone can guide me, I will be thankful. I don't need links and websites unless they are totally clear for someone like me.