Editing Fundamentals of Aerodynamics (section)

== <span style="color: #FFFFFF;">Understanding</span> ==
Aerodynamics is understood through '''Pressure''' and '''Vorticity'''.

'''1. The "Magic" of the Wing (Lift)''':
How do 500 tons "Stay in the Air"?
* Because of the **Airfoil** shape, air moves **"Faster"** over the "Top" than the "Bottom."
* According to **Bernoulli**, the "Pressure" on "Top" "Drops."
* The "High Pressure" on the "Bottom" **"Pushes"** the wing "Up."
* This is combined with "Newton's 3rd Law": the wing "Pushes" the air "Down," so the air "Pushes" the wing "Up."
* "Flight" is a **"Pressure Balance."**

'''2. The "Enemy" of Motion (Drag)''':
The "Price" of speed.
* **Skin Friction**: Air "Rubbing" against the plane.
* **Form Drag**: The "Shape" of the plane "Pushing" air out of the way.
* **Induced Drag**: A "By-product" of "Lift" (Vortices at the wingtips).
* "Design" is the "War Against Drag."
* This is why planes are **"Streamlined"** and "Polished."

'''3. The "Sonic" Barrier (Mach 1.0)''':
When air "Can't Get Out of the Way."
* When an object reaches the **Speed of Sound**, air "Compresses" into **"Shock Waves."**
* This causes a **"Sonic Boom"** and "Massive Drag."
* "Supersonic Aerodynamics" requires "Pointed Shapes" and "Swept Wings" to "Slice" through the "Shock Waves."

'''The 'Concorde' (Supersonic Flight)'''': The "Ultimate Aerodynamic Achievement." It flew at **Mach 2.0** (~1,350 mph). It proved that "Human Engineering" could "Outrun Sound," "Collapsing" the "Size of the World" through "Pure Aerodynamics."
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