Which is the main part for time machine?

The main part of a time machine, often depicted in Science Fiction, is typically a device or mechanism that manipulates time. This can take various forms, such as a complex computer system, a special energy source, or a unique material that alters the fabric of time. In many narratives, the time machine also requires precise calculations and controls to navigate through different time periods safely. Overall, the concept revolves around the idea of bending or traveling through time rather than just conventional movement through space.