Difficulty: Easy
Correct Answer: J L Baird
Explanation:
Introduction / Context:
Television is one of the most influential mass media technologies, allowing moving images and sound to be broadcast to homes around the world. Several inventors contributed to its development, but general knowledge questions often ask for the name most strongly associated with the first practical demonstration of television. This question uses that convention and asks you to identify the inventor whose early system transmitted moving images to a screen.
Given Data / Assumptions:
Concept / Approach:
J L Baird stands for John Logie Baird, a Scottish engineer who is widely credited with demonstrating one of the first working television systems in the 1920s. He used mechanical scanning techniques to send moving images over a distance and display them on a screen. His public demonstrations and later work on colour and stereoscopic television made his name strongly associated with the invention of television, especially in general knowledge contexts. Other figures like James Clerk Maxwell and Nikola Tesla made fundamental contributions to electromagnetism and wireless power, but they are not usually named as the primary inventors of television in basic exam questions.
Step-by-Step Solution:
Verification / Alternative check:
Histories of television often describe Baird mechanical scanning system and his early broadcasts, such as transmitting a moving face image. While other inventors contributed to electronic television and later improvements, general knowledge books usually highlight Baird as the inventor of television. This pattern, plus numerous references to Baird in educational material, confirms that J L Baird is the expected answer here.
Why Other Options Are Wrong:
Aristotle was an ancient Greek philosopher and made no contributions to television technology.
James Clerk Maxwell provided the theoretical basis for electromagnetic waves but did not build a television system.
Nikola Tesla worked on alternating current, motors and wireless power, not practical television broadcasting systems.
Guglielmo Marconi is famous for long distance radio communication, not for sending moving images to a screen.
Common Pitfalls:
Because names like Tesla and Marconi are strongly tied to electrical inventions and communication, some students may select them for any question about modern media. To avoid this, remember that radio and television are different technologies. Marconi is linked with radio telegraphy, while Baird is linked with the first practical mechanical television demonstrations.
Final Answer:
The first practical television system is widely credited to J L Baird.
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