"Surfactant" Natural Recordings by Native Speakers
A surface-active agent that reduces surface tension, promoting disperse phase formation, e.g. in soap bubbles or emulsions.
It's also known as surface activity principle, and its main function is to:
- Reduce surface tension: Reduces the energy of the molecules at the surface of a liquid.
- Increase solubility: Allows insoluble substances to mix or dissolve in a solvent.
- Emulsify: Allows immiscible liquids to mix together.
- Froth and foam formation: Creates a stable foam or froth on the surface of a liquid.
For example, soap works as a surfactant because it reduces the surface tension of water, making it easier to spread on a surface.
The word "surface" has several meanings depending on the context:<br><br>1. The outer layer or part of something: The surface of the water was calm and unbroken.<br>2. An extent or area over which something exists or takes place: The company covered a wide surface area in the market.<br>3. A part of something that is in contact with the air: The surface of the table was scratched.<br>4. To uncover or make something apparent: The scandal was beginning to surface.<br>5. In geography, the surface of the Earth or a planet refers to its top layer, including its terrain, oceans, and other features.<br><br>Overall, the word "surface" generally refers to the outer part or layer of something, whether it's a physical object, a geographic area, or an idea.
A surfboard is a flat, rigid, buoyant craft made from materials such as foam, fiberglass, or carbon fiber that a surfer stands on and uses to glide on the surface of a body of water, typically an ocean wave. It's designed to be ridden in wave-riding activities like surfing, where the user uses the board to balance, turn, and maneuver on the water. The shape, size, and features of a surfboard can vary depending on the type of surfing being done, the skill level of the surfer, and personal preference.
A board made of wood, fibre glass, or plastic, used for riding waves in water, particularly surfing.