If you held a piece of paper right below your mouth and blow over top of it, the paper rises. It is a little counter-intuitive, but it works. The same principle that drives this behavior is the one that allows airplanes to lift into the air. For this assignment, research the principles of flight, specifically what principle of fluids affect the behavior of the air around it allowing a plane to lift in flight. In an essay, explain this principle thoroughly answering the following questions. Make sure to cite sources.

Research questions:

1. What is the name of the principle that affects the behavior of the air to allow flight?
2. Who is the principle attributed to?
3. What other scientific discoveries is this person known for?
4. What is the formal definition of the principle? (Include a diagram & sample calculation)