Dozens of things that most people just, don’t know. This site I did not know that yesterday! gives you all sorts of information that is widely unknown. I spent the better part of last night looking through the first 100 posts, then it got late, so i looked through some more now, and i learned alot.
Everything from the difference between the terms: All Wheel Drive, and 4 Wheel Drive, to how many cars there are on he planet, to where do flies live. Very interesting things, and none of the lessons are overly long, just a short few paragraphs describing the topic.