Vibrating Grid

A low metallic murmur guided me across the rug to the base of the tall standing fan. Its curved chrome shield hummed steadily. I stood a pace back, watching the faint circular blur spinning inside. When I placed a smooth plastic button from the floor against the lower rim, the vibration rattled the piece sharply, sending it spinning into a quiet curve along the polished floorboards. I tilted my head and watched the spin wind down to stillness.