Fluid Mechanics
Hydrostatic Pressure
RealVideo®8:42 minutes (7:32 - 16:14)
Definition; incompressible fluids and dP/dy=-ρg; demonstration of pressure in paint cans filled with air and water.
Instructor: Prof. Walter Lewin
Prior Knowledge: Pascal's Principle (Beginning of V27)
RealVideo®5:06 minutes (30:33 - 35:39)
Cornelius von Drebbel's 5m submarine; overpressure; demonstrating compression of evacuated can.
Instructor: Prof. Walter Lewin
Prior Knowledge: Barometers (23:53 of V27)
RealVideo®7:53 minutes (41:41 - 49:34)
Demonstration of maximum snorkeling depth; drinking from a 5m straw.
Instructor: Prof. Walter Lewin
Prior Knowledge: Manometers and Snorkeling (35:39 of V27)
Buoyancy
RealVideo®4:30 minutes (23:58 - 28:28)
In an accelerating chamber, an apple is pulled opposite to motion, while balloon is pulled parallel to motion.
Instructor: Prof. Walter Lewin
Prior Knowledge: Balloons (16:36 of V28)
Bernoulli's Equation
RealVideo®8:30 minutes (39:49 - 48:19)
Syphoning from gas tanks; failure to blow a ping pong ball into the air; holding ball up by blowing through funnel; turbulence holds ball up.
Instructor: Prof. Walter Lewin
Prior Knowledge: Bernoulli's Equation (28:28 of V28)
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