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Faradays egg
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Faradays egg
Faradays egg. An egg-shaped glass flask made by Michael Faraday (1791-1867) to study the flow of electricity. Faraday was trying to discover whether matter was required for an electrical current to pass. He created a vacuum in the flask, then applied a voltage across the electrodes. He observed a bright yellow spark. By further experiments he discovered that the colour of the spark depended both on the type of metal in the electrode and the type of gas present in the flask. This was the principle that led to the development of spectroscopy. This object is preserved at the Royal Institution, London
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Media ID 9203987
© ROYAL INSTITUTION OF GREAT BRITAIN / SCIENCE PHOTO LIBRARY
19th Artefact Century Electrical Electricity Exhibit Exhibition Experiment Experimental Faraday Flask Glass Glassware Institution Item London Michael Museum Nineteenth Object Royal Spark Spectroscopy Vacuum Cutouts Laboratory
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EDITORS COMMENTS
This print showcases Faraday's egg, an extraordinary glass flask created by the brilliant scientist Michael Faraday in the 19th century. Designed to study the flow of electricity, this egg-shaped flask holds immense historical significance in the field of physics. Faraday embarked on a quest to determine whether matter was essential for an electrical current to pass through. To conduct his experiments, he meticulously created a vacuum within the flask and applied voltage across its electrodes. The moment of revelation came when Faraday observed a mesmerizing bright yellow spark emanating from within. Through further experimentation, he made a groundbreaking discovery - that both the type of metal used in the electrode and the gas present inside influenced the color of this awe-inspiring spark. This pivotal principle laid down by Faraday eventually paved the way for spectroscopy's development. Preserved at London's esteemed Royal Institution, this remarkable artifact serves as a testament to Faraday's ingenuity and scientific prowess. The photograph captures it against a pristine white background, emphasizing its intricate glasswork and historical value. With its rich history intertwined with electricity and experimental exploration, this object stands as an emblematic symbol bridging past discoveries with future advancements in science.
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