CATHODOGRAPH Meaning and
Definition
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A cathodograph is a historic device used for visualizing electrical current flows or patterns on a phosphorescent screen. It consists of a cathode ray tube (CRT), which is a specialized vacuum tube containing an electron gun, focusing and deflecting plates, and a screen coated with a material that emits light when struck by electrons.
In a cathodograph, the electron gun emits a narrow beam of high-speed electrons, which are accelerated towards the phosphorescent screen by an electric field. The focusing and deflecting plates help control the trajectory of the electron beam, allowing it to be directed and maneuvered across the screen. When the electrons strike the screen, they cause it to emit light, thus forming a visible pattern or image.
Cathodographs were initially used in scientific research and electrical experiments to visualize electric fields, electron beams, and cathode rays. They played a crucial role in the development of television technology and the discovery of cathode rays. With advancements in technology, cathodographs evolved into cathode ray oscilloscopes, which are widely used in electronic laboratories for measuring and displaying electronic waveforms.
Although cathodographs are primarily historical devices and have been largely replaced by more advanced technologies, they remain significant in understanding the principles of cathode ray tube technology and the early development of visual display systems.
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An x-ray picture, skiagram.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for CATHODOGRAPH
- xathodograph
- vathodograph
- fathodograph
- dathodograph
- czthodograph
- csthodograph
- cwthodograph
- cqthodograph
- carhodograph
- cafhodograph
- caghodograph
- cayhodograph
- ca6hodograph
- ca5hodograph
- catgodograph
- catbodograph
- catnodograph
- catjodograph
- catuodograph
- catyodograph
Etymology of CATHODOGRAPH
The word "Cathodograph" is a combination of two roots: "cathodo" and "graph".
The root "cathodo" is derived from the Greek word "kathodos", which means "downward way" or "course". In the scientific context, "cathode" refers to the negatively charged electrode in a vacuum tube or an electrolytic cell. It was coined by the English physicist Sir William Crookes in the 19th century.
The root "graph" comes from the Greek word "graphein", meaning "to write" or "to draw". It is commonly used as a suffix to denote an image or representation.
Therefore, when combined, "cathodograph" directly translates to "writing or drawing of the cathode".
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