Seesaw description and etymology
Seesaw description and etymology rides arranged in most playgrounds Hold the middle of the board, and people climb on either side. After that, it is a ride that uses the principle of a lever to go up and down. It's very similar to a wide jump, but the difference is whether you ride it sitting or standing. As shown in the science textbook [2] If a heavy person and a light person ride, it is possible to balance the light side by one more person going up or the heavy side sitting in the front. In the case of playful children, they sometimes play pranks on the other person while they are up. Those who have suffered may know, but they feel pain beyond description. Originally, it is a ride that can be enjoyed properly only when there are two or more people, but today, there are also items that have springs or hydraulic devices inside so that they can ride alone. The etymology of Seesaw is said to be derived from see-saw when sawing in the Anglo-American region. It's a myth that it co...