Blog Post Top 101 Black Inventors & African American's Best Invention Ideas that Changed The World
(1943 – present) – Illusion transmitter Valerie Thomas was an African American scientist and inventor who worked for NASA. She is known for inventing the illusion transmitter, which uses two concave mirrors
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Blog Post 100 Famous Inventors and Their Best Invention Ideas
obtained the patent for the telephone, Emil Berliner developed an apparatus that was supposed to be a transmitter for a telephone. It was a simple device with metal contact separated by a carbon layer. While it