Top 3 Inventions: Microphones, Mobile Phones, and Radio
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Introduction
Good morning, my name is Marina, and today I’m going to present my three favorite and most useful inventions that humanity has ever created.
Microphone
The microphone was created to address larger groups of people by amplifying the human voice. The official inventor of the microphone is David Edward Hughes in the 1870s. It was initially a carbon microphone, unlike the models we have today. Hughes, born in London in 1831, also invented the first printing telegraph. Besides his passion for physics, he was a musician, like his family, and played the piano. To use a microphone, you simply speak into it, and your voice will be amplified.
This invention is very important to me because I like singing, and without the microphone, I would... Continue reading "Top 3 Inventions: Microphones, Mobile Phones, and Radio" »