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101 Inventions That Changed the World in the Last 100 Years
addition to the benefits of making the singer’s voice louder, microphones also improved how musical instruments sounded; all in all, people were able to listen to better music thanks to the microphone. From
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Top 101 Black Inventors & African American's Best Invention Ideas that Changed The World
remained philanthropic and contributed significantly to various nonprofit groups, including the National Association for the Advancement of Colored Persons (NAACP). She even funded a scholarship to help
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Top 100 Famous Inventions and Greatest Ideas of All Time
from Egypt about two thousand years after. Both were great representations of the time-keeping instruments we use now. 25. Airplane Just like the invention of the automobile, airplanes combine multiple
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Top 100 Famous Female Inventors in History & Modern Women Inventors
the foundation for the portable devices people use daily today. This inducted her in 2014 to the National Inventors’ Hall of Fame. 43. Helen Blanchard (1840-1922) Helen Blanchard was not only a productive