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A correlation is exactly what it sounds like: a co-relation, or relationship — like the correlation between early birds waking up and the sun rising. But corollary is more like a consequence, like the corollary of the rooster crowing because you smacked it in the beak. Both words love the math lab but can hang with the rest of us, too. Continue reading...
A carousel is a circular, rotating amusement ride with seats for children. Do you like roller coasters or is the carousel more your speed?
If you’re at a carnival, a carousel probably has fake horses. But if you’re at an airport, the carousel is a conveyor belt that carries luggage (no horses). Carousel was originally the name of an event at tournaments of 16th century knights. In the carousel, knights would charge, full speed on ornately decorated horses, trying to put the tip of their lance through a golden ring. This carousel was inspired by Middle Eastern games witnessed by knights in the Crusades.