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The printing press was invented in 1440 Johannes Gutenberg.
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The clock was a idea to use a swinging bob to regulate the motion of a time-telling. Christiaan Huygens was the inventor
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The point of this machine is to separate the cotton from the seeds in the plant. It was invented by Eli Whitney
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John Fitch the builder had made four steam boats, but they were expensive and hard to built, so they were unsuccessful. The first successful one to be built was in Clermont by Robert Fulton
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Telegraph was invented between 1830s and 1840s. Created by Samauel Morse
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The plow was invented by John Deere in 1837 when middle west was being settled. Soil in the east was different and would end up breaking the wood on the plow.
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Created by Walter Hunt. Invented to hold things together
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Used to blow things up. Invented by Alfred Bernhard
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The use of this is to let people up and down levels of floors without having to walk down. Was created by Jesse W. Reno, and Charles Seeberger
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Electronic calculator was created in 1960s. It also was invented William Seward Burroughs.
