2022 Awesome Static Electricity Experiments for Kids ---STARIVER SCIENCE STEM TOYS

It's a magic science experiment for kids.
How does this ball works?
its shell is a high-strength glass shell, the ball is filled with rare inert gas, and there is a black spherical electrode in the center of the glass ball. There is an oscillating circuit board at the bottom of the ball. The 5V low-voltage direct current is converted into a high-voltage high-frequency voltage through a power converter and applied to the electrodes. After power-on, the arc formed by the electrodes and the high-voltage excitation inert gas produces a light beam, so the light generated is like some radiant glow, colorful and radiant, very beautiful in the dark.
When the ball works, a field similar to a point charge is formed around the electrode in the center of the ball. When the ball is touched with the hand (a person is connected to the earth), the electric field and potential distribution around the ball are no longer uniform and symmetrical, so the glow around the finger becomes brighter, and the arc generated moves along with the touch of the hand. It twists and dances with the movement of the fingers.

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