The electromagnetic stage - Kite Experiment
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 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
1. Franklin’s Kite Experiment:
In order to uncover the mystery of thunder and lightning, Franklin and his son made an extra-large kite out of silk and other materials in 1752. They attached metal wires to the kite's frame and tied a key to the end. When the sky was about to rain, they put the kite into the air. Lightning flashed across the kite, and the originally loose fibers on the kite immediately stood upright with the thunder and lightning, as if controlled by an invisible force. Franklin felt that the hand holding the kite string was suddenly numb. He carefully reached out to the key, and a string of sparks suddenly burst out from the key. This phenomenon proves that the properties of lightning and the electricity produced by generators are the same.
2. Principle of kite experiment:
When the charge level of the conductor and its surrounding environment are the same, the sharper the tip of the conductor, the more obvious the tip effect will be. This is because the sharper the tip, the greater the curvature, the higher the surface charge density, and the stronger the field intensity near it. On the same conductor, the part with larger curvature is the tip compared with the part with small curvature. Therefore, the edges, edges, and corners of the equipment are relative to the smooth surface, the nozzle of the pipe is relative to the pipeline, the thin wire is relative to the thick wire, the human finger is relative to the back, etc., the former can be considered as a tip, and it is easy to produce the tip effect. Moreover, even if the charged body does not have a tip and the adjacent ground conductor has a tip, a tip effect will occur between them. At this time, due to electrostatic induction, out-of-phase charges will be induced at the tip of the ground body, and discharge will easily occur with the charged body.
As his research deepened, Franklin created the world's first lightning rod based on experimental principles.
When the charge level of the conductor and its surrounding environment are the same, the sharper the tip of the conductor, the more obvious the tip effect will be. This is because the sharper the tip, the greater the curvature, the higher the surface charge density, and the stronger the field intensity near it. On the same conductor, the part with larger curvature is the tip compared with the part with small curvature.
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