Science and Technology 11: History of the Automobile Lesson 5 Notes
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- Da Vinci Again… Did You Know
- Nicolaus Otto and the Internal Combustion Engine
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Cugnot's steam-powered vehicle: It was big, heavy, and very impractical. Can you imagine driving a car like this? 
Da Vinci Again… Did You Know? Cugnot is credited with building the first automobile, but the original idea wasn't his. Some two hundred years before him, the brilliant Renaissance artist and inventor ____________________________________ came up with the idea of a self-propelled vehicle. This vehicle consisted of a series of ____________________ that were wound tightly by rotating the wheels. When the springs were released the wheels would turn and the vehicle would travel forward. Da Vinci's self-propelled car wasn't built until very recently. A working model is on display at the Institute and Museum of the History of Science in Florence, Italy. Nicolaus Otto and the Internal Combustion Engine Neither da Vinci's nor Cugnot's designs were very practical. For the automobile to truly be born it needed an _____________________________________________________. In 1876, a German inventor named Nicolaus ____________ came up with a better design. Otto invented what is known as the _____________________________________. In an internal combustion engine gasoline is ignited inside a chamber or cylinder and a powerful __________________ occurs. Attached to the cylinder is a _____________, which moves after the explosion. The piston turns a _______________________ which then turns the ____________________ on the vehicle. Otto's internal combustion engine created a tremendous amount of mechanical energy. This energy could be used to propel an object forward at considerable speed. 
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