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Explanation of what a transmission line is, and the conditions under which it exists. Uses lumped element model to derive differential equations and manipulates the equations to get telegraph equations. Uses solutions to telegraph equations to get characteristic impedance and propagation constant and looks at matched and unmatched load cases.

Twelve pilots, two days, and more quadcopters than can be counted. The fastest flying robots in the word, piloted by the best of quadcopter pilots. Multirotor racing is entering the big time.

Instead of dispatching aircraft with human pilots, NASA employed drones to investigate Hurricane Matthew.