This week we are investigating how different balls bounce differently on different surfaces. (science-sparks.com)
When comparing how different balls bounce, think about the conditions you should keep the same, for example, the height the ball is dropped from and force used to drop the ball. (science-sparks.com)
In a range - bound market, for example, it works even better as prices travel between two «rubber bands,» or like balls bouncing off the walls of a racquetball game. (wealthdaily.com)