Magnetic Levitation Bubble Experiment
A circular magnet with a hole is suspended above another magnet using the principle of like poles repelling. Soap bubbles are blown through the hole of the suspended magnet using a straw. Under sunlight, the bubble surface displays colorful interference fringes due to the magnetic field distribution at the magnet's edge, allowing observation of the interaction between optical phenomena and magnetic fields.
Nail Art Cat Eye Effect Design
Using a flower-shaped circular magnet and a cylindrical magnet, move the side of the magnet with the attracting poles parallel to the nail surface back and forth. Magnetic particles in the nail polish gel are guided by the magnetic field to form a wide cat-eye effect, suitable for creative nail art designs.
Simple Free Energy Generator
Multiple circular neodymium magnets are fixed to the edge of a turntable, with coils arranged around it. When the turntable is manually rotated, the magnets cut magnetic field lines, generating an induced current. This current, through a rectifier circuit, can briefly light a 220V LED bulb (requires a capacitor energy storage device).
Magnetic Propulsion Interactive Game
Place a circular magnet (N pole facing up) at the end of a track, and a square magnet (N pole facing down) at the starting point of the track. Upon release, the repulsive force between like poles propels glass beads or screws. The propulsion distance can be controlled by adjusting the distance between the magnets.
Dynamic Magnetic Levitation Device
Utilizing the repulsive properties of like poles between circular and ring-shaped magnets, construct a levitating pen holder or decorative item. The bottom magnet is fixed to the base, and the top magnet is suspended in the air. Adding counterweights can stabilize the suspension height, suitable for science education demonstrations.
Magnetic Field Visualization Painting
Place a circular magnet under a cardboard sheet and sprinkle iron filings on top. After gently tapping the cardboard, the iron filings will distribute along the magnetic field lines, forming a symmetrical pattern. Photographing the iron filing trajectories of different magnet combinations (such as monopoles and dipoles) can be used to create teaching materials on magnetic fields.
Magnetic Driven Toy Car
Attach a circular magnet to the bottom of a plastic toy car, and arrange alternating magnetic arrays on both sides of the track. The car moves forward using the principle of like poles repelling. Adjusting the distance between the magnets can change the driving speed, suitable for children's physics education.
Track Design: Utilize the curved surface characteristics of circular magnets to construct curved or spiral magnetic levitation tracks. Interactive Toy: Create a "magnetic bouncing ball" by combining springs and magnets, extending its motion time through magnetic repulsion.
Scientific Experiment: Investigate the shielding effect of different materials (such as iron, copper, and aluminum) on magnetic force, and verify Faraday's law of electromagnetic induction.
