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Thomas Edison

By Janice VanCleave

Thomas Alva Edison (1847-1931), was one of the most prolific American inventors of the 19th century. He was born on February 11, 1847, Milan, Ohio; the seventh and last child of Samuel and Nancy Edison. Edison did not learn to talk until he was almost four years of age.  His delay in speaking was not […]

Filed Under: electricity, Physics, Scientists

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Welcome to Janice’s Science Extravaganza!

The spoon hanging from the string vibrates when struck and these vibrations are transmitted through the string and the sound is amplified by the plastic cups. ABOUT ME: Hi, I am Janice VanCleave, author of 50 best-selling science experiment books for children ages 4 through high school. I taught science for 27 years. MORE.....

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