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=The Sound Barrier= Watch the first 25 minutes of "The Right Stuff". The DVD is in the machine--just press play. You will see the story of Chuck Yeager and the Bell X-1, the first supersonic plane. You can stop the DVD just after they say on the ground "We did it! We broke the sound barrier." =Lift and Drag= =ST: Forces of Flight= Remember when you get to question 6:
 * Find the four kinds of wing shapes, and take a screenshot of each at a 12 degree angle of attack. (Example here.)
 * Circle the Lift and the Drag, and compare them for the different shapes.
 * "Dynamic Equilibrium: When forces are balanced and speed is steady/unchanging"

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