The electromagnetic stage - Jacob's Ladder
Electromagnetism · Interactive
- DimensionsSubject to on-site plan
- PresentationInteractive
- PricingQuoted by manufacture spec
Purpose & Scientific Principle
aims to allow the audience to independently become curious about electromagnetism through various interesting and surprising discharge phenomena; and combines the historical classic experiments of famous scientists such as Faraday and Tesla with the device to vividly reproduce the near-miss electromagnetic phenomena, allowing the audience to understand the electrical experiments such as capturing electricity and storing electricity done by scientists in history; and while watching the exhibition and teaching performances, they will be deeply impressed by electricity and feel the scientific spirit of having the courage to challenge authority.
How to Operate
The Jacob's Ladder is an instrument capable of generating arcs. It has a "V" shaped electrode device composed of two poles. The gap between the two poles is the smallest at the bottom; the higher the gap, the larger the gap, and the two poles form a "V" shape.
By applying high voltage between two electrodes at a certain distance, if the electric field between the two electrodes reaches the breakdown electric field of the air, the air between the two electrodes will be broken down and a large-scale discharge will occur, forming a gas arc discharge and generating a magnetic field, causing the arc to move upward. The presentation format is very interesting and visually enjoyable. It is also widely used in life, such as welding, smelting, etc., but the premise is that the arc needs to be discharged stably.
1. Jacob’s Ladder Principle:
Air is generally an insulator. To turn air into a conductor, it must undergo a process of dielectric collapse. If the voltage reaches 30,000 volts per centimeter of air, the air is ionized and changes from an insulator to a conductor. In Jacob's Ladder, dielectric collapse occurs when the voltage between the bases of two poles reaches thirty thousand volts. Under the influence of high voltage, an arc forms at the bottom between the poles and travels upward as the hot air between the poles rises. As the length of the arc gradually increases, its power loss also increases. Once the voltage difference between the two poles is insufficient to sustain the formation of the arc, the arc will extinguish and re-form at the bottom of the pole. This process will be repeated several times.
2.The origin of the name:
There is a story in Greek mythology: Jacob dreamed of climbing a ladder to the sky to obtain the "Holy Fire". Later generations called this mythical ladder Jacob's Ladder. The phenomenon of arc climbing is similar, so this phenomenon is called Jacob's Ladder.
Air is an insulator under normal circumstances. To turn air into a conductor, it must go through the process of dielectric collapse. If the voltage reaches 30,000 volts per centimeter of air, the air is ionized and changes from an insulator to a conductor. In Jacob's Ladder, dielectric collapse occurs when the voltage between the bases of two poles reaches thirty thousand volts. Under the influence of high voltage, an arc forms at the bottom between the poles and travels upward as the hot air between the poles rises. As the length of the arc gradually increases, its power loss also increases. Once the voltage difference between the two poles is insufficient to sustain the formation of the arc, the arc will extinguish and re-form at the bottom of the pole. This process will be repeated several times.
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