This is the amusing moment a teacher helped stressed pupils with a rolling balloon ring in the classroom.

The senior high school physics teacher introduced the 'rolling balloon ring' experiment to alleviate her students' stress while teaching them about Bernoulli's principle and the Coanda effect in Fujian, China, on April 2.

Footage shows the lecturer explaining the experiment to her students.

They then proceed to pass through the circular ring of moving balloons that were floating vertically while in motion in the air.

This intriguing physics experiment happens when air is blown from a hairdryer on the side of the balloon loop. The airflow speeds up as it moves towards the curved surface of the balloon, reducing the pressure on the it's surface.

The hairdryer accelerates the airflow near the balloon, creating a force that causes the balloon loop to rotate, allowing it to float and spin in the air.