Static electricity
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Static electricity
Static electricity. Strips of paper that have been electrically charged by a Van de Graaff generator, a device that generates static electricity. Charge accumulates on the metal dome and is transferred to the paper. When uncharged, the strips of paper hang downwards under gravity, but when they are electrically charged they repel each other and move upwards and apart (as is seen here). This is possible because the electrical force is stronger than gravity. The two opposing types of electrical charge (positive and negative) usually cancel out, but excess charge (as here), clearly demonstrates the greater strength of the electrical force
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Media ID 6436759
© ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY
Charged Class Room Demonstrating Demonstration Device Education Educational Electric Charge Electrical Electricity Electrostatic Electrostatics Experiment Experimental Force Forces Generator Gravitational Gravity Lesson Repulsion School Static Laboratory Physical Repulsed
EDITORS COMMENTS
This print showcases the fascinating phenomenon of static electricity. Strips of paper, charged by a Van de Graaff generator, come alive with electric energy. Normally hanging downwards under gravity's pull, these strips defy expectations as they repel each other and move upwards and apart. The power behind this mesmerizing display lies in the strength of the electrical force. While opposing types of electrical charge usually cancel each other out, an excess charge on these strips clearly demonstrates the dominance of the electrical force over gravity. It is a remarkable reminder that science can challenge our perceptions and reveal hidden forces at play. In a classroom laboratory setting, this experiment serves as an engaging educational tool for students to explore electrostatics and understand how technology harnesses electricity. The Van de Graaff generator stands tall as a symbol of scientific ingenuity and innovation. Science Photo Library captures this moment perfectly, allowing us to appreciate both the beauty and educational value within this single image. As we gaze upon these electrified strips suspended in mid-air, we are reminded of the wonders that await those who dare to delve into the world of physics and uncover its secrets.
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