Lubricants are substances used to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move. They play a critical role in various applications, from mechanical systems and machinery to human health and personal care.
### Types of Lubricants:
1. **Liquid Lubricants**: Commonly oils (e.g., motor oil, hydraulic oil) or greases that are used in engines, gears, and various machinery to