My time machine consists of two spheres: Sphere A is the outer layer, while Sphere C is hidden inside Sphere A. Sphere A has electromagnets installed on the surface and is made of metal, while Sphere C is made of rubber and serves as a cabin for the traveler. Sphere C is made of rubber to prevent the electromagnetic field from interfering inside, i.e., to prevent time from changing inside the sphere. Additionally, I recommend using rubber suits for the traveler to enhance the protection. The red spots indicate the electromagnets. The entire setup is suspended on Base B.