Surface tension is the tightness of the string on the racquet. While higher tension makes the string bed firm and offers more control, lower tension makes it softer and gives it more power. Here’s ...

In this short video we will explain the physical cause of service tension and what happens when you add soap to water. We will show the energetic nature of surface tension by means of an experiment ...

A floating paperclip illusion is demonstrated and explained using magnetic or surface tension effects.