No
George W. Cannon was the inventor of the mechanical dumbwaiter. He filed for the patent on February 17, 1887, and reportedly became quite wealthy from his invention.
The oldest simile for 'as dumb as' is 'As dumb as a doornail'. Others include: As dumb as a wet noodle. As dumb as an unpowered computer. As dumb as a library with no books.
who is the inventor
George W. Cannon was the inventor of the mechanical dumbwaiter. He filed for the patent on February 17, 1887, and reportedly became quite wealthy from his invention.
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Inventor
Thomas Edison's teacher called him dumb because he struggled with traditional classroom learning methods and had difficulty focusing on schoolwork. This led his teacher to believe he was not intelligent based on these limitations. However, Edison's experiences taught him the value of perseverance and thinking outside the box, eventually leading to his great success as an inventor.
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No she is not dumb...your dumb for asking this question
Weathering breaks down rock into smaller pieces through physical processes like abrasion, freezing and thawing, or chemical processes like oxidation and carbonation. This results in the formation of sediment and soil.
an inventor is a designer but a designer is not an inventor