What is the thing that doesn't get wet in water?

 The thing that doesn't get wet in water is a hydrophobic material, which repels water due to its molecular structure. Hydrophobic substances have a natural aversion to water, causing water droplets to bead up and slide off their surface without being absorbed. This property is utilized in various applications, such as waterproof coatings, rain jackets, and non-stick cookware, where the material remains dry even when submerged in water.

The thing that doesn't get wet in water is typically referred to as a hydrophobic material. Hydrophobic substances possess a molecular structure that repels water. This repellent nature stems from the fact that the molecules making up these materials are non-polar or have a low polarity, meaning they don't interact strongly with water molecules, which are polar. As a result, water droplets on hydrophobic surfaces tend to form spherical shapes and bead up, rather than spreading out and wetting the surface.

This unique property of hydrophobic materials has led to their widespread use in various applications where repelling water is desirable. For example, waterproof coatings made from hydrophobic compounds are applied to fabrics, paper, and building materials to protect them from moisture damage. Additionally, hydrophobic coatings are utilized in the manufacturing of rain jackets, tents, and outdoor gear to keep users dry in wet conditions.

Moreover, hydrophobic materials find applications in everyday products like non-stick cookware. The non-stick surface of pans and pots is often created using a hydrophobic coating, such as polytetrafluoroethylene (PTFE), commonly known as Teflon. This coating prevents food from sticking to the surface and makes cleanup easier, as water and other liquids slide off without adhering to the material.

In summary, hydrophobic materials exhibit a remarkable ability to repel water due to their molecular structure, making them invaluable in various industries and everyday products where staying dry or preventing water damage is essential.