Interactive physics education tool This circular accelerator demonstrator visually explains electromagnetic acceleration principles and lets students observe continuous orbital motion of steel balls. Ideal for classrooms and science fairs. Safe lowvoltage operation Operates on 12V DC power with only 8W consumption, ensuring safe use. Oxygen copper coils stay cool even after extended operation, eliminating overheating concerns. Precise magnetic trigger system Features a responsive detection mechanism that accurately tracks steel ball movement with no noticeable delay. Each coil is independently controlled for consistent acceleration and reliable performance. Durable transparent design Acrylic construction showcases a 23 cm circular track and 15 mm diameter magnetic steel balls. The open design allows easy observation and maintenance while clearly demonstrating physical concepts. Use scenarios Inclass demonstrations of electromagnetic acceleration and orbital motion; science fairs and STEM exhibitions to illustrate electromagnetism and feedback control; physics or engineering labs for experiments on trigger timing, coil control, and motion observation.