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1902 Willis Carrier A/C
Willis Carrier was an engineer. He was best known for inventing the Air conditioning which cools off our homes today. https://en.wikipedia.org/wiki/Willis_Carrier -
Polygraph Machine
James Mackenzie invented the Polygraph Machine in 1902. This machine records Blood pressure, pulse, reparations and skin conductivity when asked a series of questions. -
Gas Mortor Air Plane
The Wright Brothers invented the first gas motored airplane. -
Windsheild Wipers
The Windshield wipers were invented in 1903 by woman names Mary Anderson. These wipers are to clean of the windshield of your car. These wipers are controlled within the car. -
Tea Bags
In 1904 Thomas Sullivan invented the tea bag. A tea bag is a small porous sealed bag containing tea leaves.