Electrical Apparatus
Wall Art and Photo Gifts from Mary Evans Picture Library
Electrical Apparatus
Various electrical apparatus: Electroscope Electrophorus Geissler tubes Date: 1882
Mary Evans Picture Library makes available wonderful images created for people to enjoy over the centuries
Media ID 7125337
© Mary Evans Picture Library 2015 - https://copyrighthub.org/s0/hub1/creation/maryevans/MaryEvansPictureID/10110903
1882 Apparatus Electrical Electricity Electrophorus Tubes Electroscope Geissler
EDITORS COMMENTS
This photograph from 1882 showcases a collection of early electrical apparatus that once played a pivotal role in the scientific exploration and understanding of the mysterious force of electricity. The image, sourced from Mary Evans Prints Online, features an electroscope, an electrophorus, and several Geissler tubes. An electroscope is an early electrical detection device, used to measure and observe the presence of an electric charge. The instrument in this photograph consists of a metal ball suspended by a thin gold leaf, which is attracted or repelled by an electric field, causing the ball to move and indicating the presence of a charge. The electrophorus, another intriguing device, is a type of electrostatic generator that produces a high voltage charge by rubbing a charged material, such as a cat or a piece of amber, against an uncharged material. In this photograph, the electrophorus is depicted with a glass plate and metal rods, which would have been used to generate and transfer the electric charge. Lastly, the Geissler tubes, named after their inventor Heinrich Geissler, are early vacuum tubes filled with various gases, which emit light when an electric current is passed through them. These tubes were instrumental in the development of early television technology and were used extensively in scientific research during the late 19th and early 20th centuries. This photograph offers a fascinating glimpse into the world of electrical science during a time when the study of electricity was still in its infancy. The intricate designs and complex mechanisms of these early electrical apparatus continue to captivate and inspire scientists, engineers, and enthusiasts alike, reminding us of the incredible advancements that have been made in the field of electricity over the past century and a half.
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