A laser beam is a concentrated stream of light that is produced by a device called a laser. The term "laser" stands for "Light Amplification by Stimulated Emission of Radiation." Unlike regular light, which spreads out in many directions, a laser beam is highly focused and can travel long distances without losing much intensity. Lasers have various applications in different fields. In medicine, they are used for surgeries and skin treatments. In technology, they are essential for CD and DVD players, as well as in fiber optic communications. Additionally, lasers are used in manufacturing, scientific research, and even in entertainment, such as light shows.