Composites are materials made by combining two or more different substances to create a new material with enhanced properties. For example, a common composite is fiberglass, which combines glass fibers with a resin to produce a strong, lightweight material often used in boats and cars. This combination allows for improved strength, durability, and resistance to environmental factors. Another example of composites is carbon fiber, which is made from thin strands of carbon woven together and then bonded with a resin. This material is known for its high strength-to-weight ratio, making it popular in industries like aerospace and sports equipment. Composites are essential in modern engineering and design, offering innovative solutions across various fields.