It is called Blonsky device, and the story behind it is interesting: https://allthatsinteresting.com/blonsky-device https://allthatsinteresting.com/blonsky-devi

It is called Blonsky device, and the story behind it is interesting: https://allthatsinteresting.com/blonsky-device https://allthatsinteresting.com/blonsky-device From the article: "On that fateful day, George witnessed a pregnant elephant nearing labor. The large mammal spun in wide, slow circles. As he watched, George hypothesized that the spinning helped the elephant deliver its 250-pound baby."