Vacuum

A vacuum is a space where almost all air and other particles have been removed, creating a low-pressure environment. This absence of particles means there’s very little matter in that space. In practical terms, vacuums are used in various applications like scientific experiments, manufacturing, and vacuum sealers to preserve food. Since there’s little to no air, objects inside the vacuum don’t experience air resistance, which can be useful for precise measurements or protecting sensitive equipment. Creating a vacuum typically involves using a pump to extract air, resulting in a space that is significantly emptier than the surrounding atmosphere.