Cathode-Ray Tube Day is celebrated on December 20 every year in the United States. It is a special holiday which aims to appreciate the technology for all the ways we have benefited from it. A cathode-ray tube( C.R.T.) is a vacuum tube. it includes one or more electron guns. The electron guns release electron beams that are manipulated to display images on a phosphorescent screen.
The displayed images can illustrate pictures including a television set or computer monitor. Also, It can be electrical waveforms for oscilloscopes, radar targets, or other phenomena.
Cathode-Ray Tube Day – History
Cathode-Ray Tube Day marks gratitude for the technology that many people depend on. The kinescope was the initial name for the cathode-ray tube (C.R.T.). In 1938, A Russian immigrant called Vladimir Zworykin patented the invention. The day is observed to highlight the anniversary of the patent.
Before this, in 1869, Crookes tubes were found to contain cathode rays. German scientist, Ferdinand Braun created the first iteration of the C.R.T. in 1897. The Braun Tube was the name of the prototype. Germany made the first commercial C.R.T. television sets in the year 1934.
Cathode-Ray Tube Day – Dates
| Year | Date | Day |
|---|---|---|
| 2023 | December 20 | Wednesday |
| 2024 | December 20 | Friday |
| 2025 | December 20 | Saturday |
| 2026 | December 20 | Sunday |
| 2027 | December 20 | Monday |
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| Computer Awareness Quiz Questions Set (Banking) |
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| Daily Current Affairs Quiz (Current GK Test) |
| Static Gk Quiz Questions and Answers |
📣 Prepare Exams is now on Facebook, Twitter, Instagram, YouTube Channel, and Google News to get all the late