I've shared this site before but I think you will appreciate this 14 minute video which explains this knowledge engine. Wolfram Alpha is not the typical search engine. Instead of giving you tons of links for continued research, it actually gives you the information. The site developer shares how to use the site in the video. All you have to do is click on the title of this post to go to the video. It will start automatically but you can go to the bottom to stop and start the video. Just for fun, after you watch the video, go here to the site. Type in your birth date and see what information you get. Check back soon to learn more about Wolfram Alpha and their education site.