Steel Plow Steam Shovel Postage Stamp Vulcanized Rubber Steel Plow When American settlers moved to the Great Plains, they found that the heavy iron plow of Europe would not work because the soil of the plains would stick to the plow. John Deere saw this problem, and went to work experimenting with different polished metals …
Daily Archives: November 4, 2020
History 4 and 5: The Pencil
History 4, Lesson #89: https://essaybank.home.blog/2020/02/21/history-lesson-90-the-heliocentric-theory-vesalius-%e2%9c%8f%ef%b8%8fand-the-pencil-%e2%9c%8f%ef%b8%8f/ History 5, Lesson #11: https://essaybank.home.blog/2020/09/14/history-lesson-15-2/ These two essays that include the pencil are a two-part story.