Episode 2 : "Springs" are like Sumo Wrestlers
Today's theme is "Springs are like Sumo Wrestlers". You may be doubting what springs and Sumo wrestlers have to do with each other? Very few Japanese would say, "No, I've never seen Sumo" because Sumo is Japan's national sport. Using their well-developed muscles, Sumo wrestlers try to push their opponent out of the ring or make him fall. In the process, the Sumo wrestler pushes and pulls his opponent, and the opponent acts repulsively to hold out against the pushing/pulling force.
For example, a chair spring reacts to the weight of a person sitting down on the chair. Thanks to the spring repulsion to the sitting force, we avoid the shock produced by our weight. On the other hand, think about old-fashioned scales for measuring weight. When you hang a bag on the large hook at the end of the scale, a spring in the scale is stretched. In other words, the spring acts repulsively to the pulling force caused by the weight of the bag.
Written by Banekko (a child of spring)