The Bowls that won't come Apart 2

Let's take a look!

Watch the video on YouTube.

What kind of experiment is this?

Experimental procedure and explanation:

• Position the two bowls vertically under water. The water pressure is large where the water is deep, and the bowls will not come apart.
• But as you gradually move the bowls closer to the surface, they come apart at a certain depth.
• The magnitude of buoyancy depends on the volume of air inside the bowls, and it does not depend on depth. However, water pressure decreases as its depth decreases; therefore, the bowls will come apart when they are close to the surface.

[Keywords]	Water depth and pressure, Buoyancy
[Related items]	The Bowls that won't come Apart 1
[Reference]	“The Wonders of Flow,” Japan Society of Mechanical Engineering, Kodansha Blue Backs pp. 38-41, pp. 42-47. “Illustrated Fluid Dynamics Trivia,” by Ryozo Ishiwata, Natsume Publishing, pp. 18-19.