DIY: Liquefaction

The video tutorial demonstrates an experiment to understand liquefaction, a phenomenon where the ground loses its strength due to saturation, often occurring during earthquakes. The experiment uses sand, water, a ping pong ball, and a brick to simulate the effects of liquefaction. The tutorial explains the setup, execution, and observation of the experiment, highlighting the importance of understanding liquefaction for building safe infrastructure.

Explain the significance of liquefaction in the context of earthquakes.

How does the demonstration relate to building infrastructure?