Hello, this is my first post. I am a 15 year old from India just finishing my 1st year in high school. One of my friends recommended to me the world science U website - http://www.worldscienceu.com/courses/master_class I watched Max Tegmarks' History of the universe - http://www.worldscienceu.com/courses/master_class/master-class-max-tegmark and got to know about the history of the universe and things like the theory of cosmic Inflation. Now I want to know more but have no idea where to start. As I mentioned I will finish my first year in high school this March so my math is pretty much limited to that. I know a little of trigonometry, some algebra and euclidean geometry.