Absorbers are materials or devices designed to take in energy, sound, or other forms of waves. They are commonly used in various applications, such as reducing noise in buildings or improving the efficiency of electronic devices. By absorbing energy, these materials help minimize reflections and vibrations, leading to a more controlled environment. In acoustics, sound absorbers are often made from porous materials like foam or fabric, which trap sound waves and convert them into heat. In engineering, vibration absorbers can be used to dampen unwanted oscillations in machinery, enhancing performance and longevity.