inventions

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inventions

Ruby Goldberg's bright idea

  • Humphrey, Anna
2015
Ruby is determined to win the gold with her fifth-grade science fair project, a Rube Goldberg machine to help her grandfather, but the real prize turns out to be something completely unexpected.
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19th century innovations

paving the way
  • McArdle, Matthew
2017
Introduces inventions from the 19th century and explains the impact they had.
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