Dr. Pettit has made a large water sphere on a 50 mm (diameter) wire loop. He shows how the water acts as a magnifier.

Dr. Pettit investigates the behavior of large air bubbles inside spheres of water on a 50 mm wire loop. A large bubble is formed by injecting air into a water sphere. Oscillations of the interior water/air surface can be seen as air is injected making the air bubble larger.

Water spheres are created inside the air bubble inside the water sphere on a 50 mm wire loop. These small water spheres (approximately 2-6 mm) are seen to ‘roll around' the exterior of the air bubble and bounce linearly off the air bubble exterior. These small spheres also collide in ‘mid-air' without coalescing. The small water spheres eventually slow down and coalesce when they collide with each other or the large water sphere.

A small water sphere (approximately 5 mm) rolls around the exterior of an air bubble inside the 50 mm water sphere held in place by a wire loop. The small water sphere speed slows until it coalesces with the large water sphere at which point an even smaller water sphere (about 3 mm) is ejected and begins bouncing around inside the air bubble.

A small water sphere (about 5 mm) rolls around the exterior of an air bubble inside the 50 mm water sphere. The path of the small water sphere is in a vertical plane nearly aligned with the camera. Other smaller water spheres are also faintly seen rolling around the air bubble exterior.

Dr. Pettit blows a puff of air on a large water sphere and the fluid oscillates with constructive and destructive wave patterns reflecting back and forth across the water sphere.