Dojbk Tesla Columbus Eggs, Electromagnetic Rotating Magnetic Field Model, With 30 * 50Mm Aluminum Egg, Infinitely Variable Speed, For Teaching And Science Experiments

DOJBK

SCIENTIFIC PRINCIPLE DEMONSTRATION: Tesla's Columbus Egg demonstrates the effects of a rotating magnetic field. Driven by magnetic eddy currents, the aluminum egg (30mmx50mm) rotates along its long axis and, after acceleration, stands upright due to the gyroscopic effect, vividly illustrating the principles of asynchronous motors HIGH-QUALITY MATERIALS: The solid wood base features a metal toggle switch, secured with rivets and a stable center support. The aluminum egg and wooden rotating disk combination creates a premium feel, perfect for teaching or collecting USER-FRIENDLY DESIGN: The stepless speed adjustment button precisely controls the speed, a power indicator displays the status in real time, and operation is simple and intuitive. The dovetail hinge ensures smooth opening and closing EXQUISITE DETAILS: The aluminum egg boasts a durable, glossy coating, the solid wood base is non-slip and wear-resistant, and the overall size is compact, combining aesthetics with practicality, making it a perfect gift or personal use MULTIFUNCTIONAL USE: It serves as both a physics teaching aid (demonstrating magnetic eddy currents and the gyroscopic effect) and a fun science display, perfect for interactive exploration by students, teachers, and science enthusiasts