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Luminous elastic ball is an interesting toy which combines optics, friction and elasticity. Its main features include:

Sphere Materials: Usually made of elastic materials such as silicone or polyurethane, these materials have good elasticity and flexibility, making the sphere compressible and elastic.

Internal structure: Contains a light-emitting core, composed of light-emitting materials, carbon-zinc batteries and simple switches. When the spheres are squeezed or collided, the internal structure generates a tiny current that activates the light-emitting material through a switch.

Lumen principle: The lumen material is usually a light source (LED). When an electrical signal flows through the LED, it processes the electrical signal and produces light waves. When the ball is squashed or hit, an electric current is generated inside the lumming material, which excites the LED to produce a more brilliant light.

Friction Theory: When the ball is pressed or hit, the contact area between the internal surface area of the ball and the external object increases, creating more friction. These forces produce a higher rebound force.

Principle of elasticity: the impact or compression of the ball will cause the ball to deform and compress its internal structure, which will make the ball bounce. When the sphere bounces upward, the internal structure returns to its original shape and creates an elastic rebound.

Applications: Luminous elastic balls are widely used in children's toys, handicrafts and fitness equipment, and are also commonly used for live performances and displays.

In short, the light-emitting elastic ball not only has a beautiful appearance and elastic texture, but also involves many fields in physics, and is an entertainment toy that combines optics, friction and elasticity mechanics.