The microphone it was invented in 1916 by Thomas Edison. He made it for offices and jobs. It made up of metallic steel metal and of a sound board its used for airplanes, offices, and jobs. This is how you make a makeshift microphone: you need metal, a voice recorder, and an electromagnet.
The typewriter it was invented to write on paper using keys. To write with a pencil it would take you 1 minute to write 30 words, with a typewriter you can type 100 words in 30 seconds. It was helping people at work and people sending messages fast. Some people use it nowadays, but most people use the computer to write fast and efficient.
The braille typing system was only used for blind people to type like a typewriter. They would memorize the keys and type essays in school. Braille typing system was a good invention. Who made it? Well, it was Louis Charles, he was a young boy that got blinded at a young age, after he was failing. But he and his friends made a typewriter that was simple and made the first braille system. After he was catching up to normal kids for the school board wouldn’t accept it. His parents enrolled him in a Special school, and he felt included, so he made all the braille system for all students. This system still in use today.
Lesson Learning 