Seesaw

A seesaw is a long, narrow board used for play and mechanical tasks.

It is most commonly found at parks and school playgrounds. This device is a type of simple machine known as a lever. A lever consists of a beam and a fulcrum, which is a pivot point. In a seesaw, the fulcrum is usually located at the midpoint between both ends. As one end of the board moves up, the other end moves down. This creates a rhythmic, oscillating motion that people find engaging.

The mechanism of a standard playground seesaw is quite straightforward. Two people sit on opposite ends of the board, facing each other. They often use handles to maintain a steady grip during the ride. To initiate movement, the riders push their feet against the ground. This effort lifts their side of the board into the air. The weight of the person on the opposite side then pulls that end down. This sequence of rising and falling continues as long as the riders provide the necessary force.

Manufacturers create many different varieties of seesaws to appeal to children. The most common design features a balanced board with seats at each end. However, some models are built in creative shapes. These can look like airplanes, helicopters, or various animals. They are often painted in bright, attractive colors. Beyond play, some seesaws serve functional purposes. For example, in the Gaviotas community in Colombia, a seesaw is connected to a water pump to assist with mechanical processes.

History shows that humans have used seesaws for a very long time. An Attic red-figure krater, which is a type of ancient Greek pottery, depicts two adolescent girls playing on a seesaw. This artifact dates to between 470 and 460 BCE. The concept of the seesaw has also been captured in fine art. The painter Francisco de Goya included a seesaw in a painting from 1792. These examples show that the device has been a part of human culture for centuries.

Safety is a significant factor in the design and use of seesaws. If a child jumps off the board too suddenly, the other person might fall and suffer an injury. To prevent this, many playgrounds mount seesaws above soft surfaces. These surfaces include foam, wood chips, or sand. Because of these risks, many seesaws were removed from United States playgrounds in the early 2000s. Despite these removals, some people argue that the joy and fun of the activity outweigh the potential safety risks.

The names used for this device vary significantly across different regions and languages. The term "seesaw" is an Anglicisation of the French "ci-ça," which means "this-that." This name likely describes the back-and-forth motion. It might also come from the word "scie," the French word for "saw." In the western and northern inland United States, it is often called a "teeter-totter." This term may originate from the Norfolk dialect word "tittermatorter." Both names use a linguistic process called reduplication, where a syllable is doubled to indicate repeated activity.

Linguistic patterns also reveal how different names spread through the United States. In southeastern New England, the device is sometimes called a "tilt" or a "tilting board." Research by Michael Drout suggests that the "teeter-" forms are rare in Pennsylvania. Instead, a "Ridey-Horse" pattern exists in western West Virginia and western North Carolina. This suggests that New England terms spread down the coast, while a separate Scots-Irish development occurred in Appalachia. In coastal North Carolina, the term "Hickey-horse" is used. These variations show how culture and geography shape the words we use for simple objects.