Touch Aurora

Understand the formation process of aurora through the interactive method of touching the glowing ball. The exhibit consists of electromechanical interactive devices and graphics. The glass sphere is filled with an inert gas mixture, and the electrodes inside the sphere are connected to a high-frequency and high-voltage power supply. Gas molecules exhibit avalanche ionization effects in the electromagnetic field, and visitors can see branched spark discharges inside the sphere. Different gases also undergo different colors and shapes during ionization. When visitors touches the ball shell, the human body is like a conductor connected to the ground, forming a strong discharge channel in the area of contact with the human body, and the glow is even brighter. Target audience: teenagers aged 6-15 years old. Display format: electromechanical interactive device+graphic and textual operation instructions (audience experience) 1 Visitors can touch the glass ball and enjoy the magnificent aurora; 2. At the same time, understand the principle of aurora generated by the interaction between solar wind and Earth's magnetic field through wall graphics and text. Regarding the internal relationship between the storyline and exhibits.

Interaction type: Electromechanical interactive. The unit is designed for unsupervised public use: controls are recessed or shielded, moving parts are enclosed, and the interface is operable by a child of about six with no instruction. Where a screen is used, the language can be switched without changing the hardware, and the content can be replaced on site.

Aurora is a colorful plasma phenomenon that occurs due to the flow of charged particles from the sun (solar wind) entering the Earth's magnetic field, creating a brilliant and beautiful glow at night in the high altitude near the north and south poles of the Earth. It is called the Southern Lights in Antarctica and the Northern Lights in the Arctic. The aurora of the Earth is generated by the high-energy charged particle flow (solar wind) from the Earth's magnetosphere or the Sun, which excites (or ionizes) molecules or atoms in the upper atmosphere. Aurora often appears in the airspace near the geomagnetic pole at latitudes, generally in the form of bands, arcs, curtains, or radiating shapes, which are sometimes stable and sometimes undergo continuous changes. There are three conditions for the formation of auroras: atmosphere, magnetic field, and high-energy charged particles. Modern physics provides a detailed description of the principle behind the formation of auroras. The auroras on Earth are caused by charged high-energy particles from the magnetosphere and solar wind being guided into the Earth's atmosphere by the geomagnetic field and interacting with the upper atmosphere.