Believe it or not, these are all real. Google will take you to an explanation of each. Some are matter-of-fact, like the Cheerios effect or the Butterfly effect. Some have a cute story behind them, like the Woozle effect. And others are named after the scientist who wrote about it, like the Perky effect or the Stroop effect. I would particularly recommend the story behind the Dr. Fox effect. This comic is from Randall Munroe at xkcd.