When I first heard or read about each piece of info that I've posted here, I thought I should have a place to write them, or else I would forget them.
And that's how I came up with all that.
Just to let you know that this is not a "copy and paste" from some "Did You Know?" site listing random facts, often not true. I've looked up everything in college texts and it should be 100% accurate.
Also - the "Science" section is not too scientific on purpose, the goal is to be able to understand it easily and remember it later.