I like how you say, "educational purposes"
Why not search it in Google and use the researches that are there in your results? I think it's easy to do that but I hope you share what you are planning to do or put out the "educational purpose" you are talking about. Lol.
Maybe he can't understand it just by reading, sometimes people needs live demo to understand it very well, including me, as he said he needs a live demo above. This guy is taking up our time.