Pay in 4 interest-free payments of $22.50 Learn more
Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
the product is really a satisfying gift for both children and adults
Package Weight: 1000g
fine and smooth surface treatment
Simple and easy-to-use control page
External Power: DC 5V (USB Cable)
NIKOLATOY® Tesla's egg of Columbus-Electromagnetic Eddy Current Experiment In stock the product is really aIts lid can be opened to observe the internal structure more comprehensively Principle: After the motor is powered on, it rotates to drive the two magnets at the top to rotate in the same way. When the magnets rotate to a certain degree, a magnetic eddy current is formed. The metal egg on the wooden disk will rotate with the magnetic eddy current, and with the long axis rotation, the rotation acceleration will eventually form a gyroscopic effect, and