History lesson 10 essay

The first invention I learned about this week was vapor compression. Oliver Evens wrote an engineering book about his theory of vapor compression. Later people start to follow the book, and one person made the first refrigerator and had a success with it in the food industry. It changed history for the better because peopleContinue reading “History lesson 10 essay”

History 5 essay 1

This week I learned about three amazing inventions.  The first one was the suspension bridge. The suspension bridge impacted history because the supplies were relatively cheap. It was also light given their strength and length. We still use suspension bridges to this day and they are much better from back then.  The 2nd invention I learned about thisContinue reading “History 5 essay 1”