Gravity is the downward pulling force that no object on Earth can escape. The core of electromagnetic levitation technology is to create a continuous, controllable upward force to precisely counteract gravity and achieve stable levitation. This is typically achieved through the interaction between an electromagnet and a controlled object (containing magnetic materials or conductors). The system needs to monitor the position of the levitated object in real time and quickly adjust the current of the electromagnet through a feedback loop, thereby generating a magnetic force equal in magnitude and opposite in direction to gravity, "locking" the object at a certain equilibrium point in the air. Essentially, this is a dynamic and precise force balance, an elegant victory of magnetism over gravity. Our "Magnetic Levitation Light Bulb" exhibit transforms a transparent device, 1.4 meters in diameter and 2.6 meters high, into the stage for this "anti-gravity magic." When you press the start but
