Article
Inti St. Clair/Getty Images

The History of BOING!

How a kid like you dreamed up the trampoline

By Jess Romeo
From the March 2021 Issue
Download and Print

George Nissen was 7 years old in 1921 when he went to the circus in Cedar Rapids, Iowa. He watched trapeze artists flip and twist through the air, then land with a bounce on a safety net stretched below. George was fascinated by the springy net, says his daughter Dian Nissen. “That trip to the circus sparked his creativity and imagination.”

When George was 12, he joined a gymnastics club. He drew a design for a springy device that gymnasts could bounce on to practice flips. At the time, George didn’t know how to build it. But years later, after much trial and error, he invented the trampoline!

Two girls jumping on a trampoline

Inti St. Clair/Getty Images

Trampoline use can lead to injury. Always stay in control while jumping!

A Leap Forward

George built his first prototype, or testable model, when he was 16. One day, he took apart his bed and stretched a sheet of canvas across the wooden frame. 

Then he jumped on it. He noticed this first device had a problem: It wasn’t bouncy!

Four years later, George shared his idea with Larry Griswold, his gymnastics coach at the University of Iowa. They began working together to improve his device, which George called a “bouncing rig.”

They decided to line the metal frame with rubber rings. When a person jumped on the canvas, the rings stretched downward. As the rings snapped back to their original shape, the canvas flung the jumper high into the air. George called this prototype the “trampoline” for the Spanish word trampolín, which means “diving board.”

George thought his invention could be used to train athletes. Then one summer, he took a prototype to a camp for kids to test. Kids had so much fun on the trampoline that he couldn’t get them off it. “George realized his invention had a lot more potential,” says Dian.

Old back-and-white photo of a man and a kangaroo jumping high on a trampoline

Bettmann/Getty Images

George Nissen jumps on a trampoline with a kangaroo in 1960 to promote his invention.

Thrilling Toy

In 1945, George received a patent, or legal recognition, for his invention. He founded a company to make trampolines. To sell them, he traveled the world performing trampoline shows. Soon, the invention became a popular backyard toy. In 2000, trampolining even became an Olympic sport!

Three figures, sketched in 1945, showing different parts of a a trampoline

United States Patent and Trademark Office (Patent)

George used these drawings of the trampoline design to apply for a patent.

Over the years, George improved his design. He swapped the rubber rings with metal springs to give it more bounce. He also tried different shapes and sizes. The earliest design was rectangular. George later created a round trampoline, which was less expensive to build.

George passed away in 2010. According to Dian, her dad saw the trampoline as a device that makes exercise fun and exciting. He would say: “An invention is just familiar items rearranged to create a surprising result.” 

Text-to-Speech