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G1-18: PENDULUM WITH FORCE SCALE

Purpose: Show the tension in the string exerted by a swinging pendulum.

G1-17: PENDULUM WITH LARGE-ANGLE OSCILLATION - PORTABLE

Purpose: Illustrate large-angle pendular oscillations and the 360 degree pendulum.

F4-63: MARIOTTE'S BOTTLE

Category: F4 Fluid in Motion

Purpose: Show the range of water jets from different heights along a water column.

G1-16: PENDULUM WITH LARGE OSCILLATION

Purpose: Show the difference between pendula with small amplitude and large amplitude of oscillation, and to show rotational motion where the kinetic energy at the top is much less than the change of potential energy from the top to the bottom of the oscillation.

G1-12: PENDULUM AND ROTATING BALL

Purpose: Demonstrate that simple harmonic motion is the projection of uniform circular motion.

F4-61: HERO'S FOUNTAIN

Category: F4 Fluid in Motion

Purpose: Illustrate fluid dynamics in a perhaps surprising way.

F4-52: FORCE PUMP - MODEL

Category: F4 Fluid in Motion

Purpose: Demonstrate the operation of a force pump.

F4-42: SMOKE RINGS USING GARBAGE CAN

Category: F4 Fluid in Motion

Purpose: Create large smoke rings and illustrate the circular vortex.

F4-41: DRUM AND CANDLE

Category: F4 Fluid in Motion

Purpose: Demonstrate the circular vortex.

F4-23: WATER PENDULUM

Category: F4 Fluid in Motion

Purpose: Show the surface of a container of water in a swinging pendulum.

F4-22: SPINNING WATER BUCKET

Category: F4 Fluid in Motion

Purpose: Illustrate the reaction force on spinning water and the shape of the water surface.

F4-21: LIQUID IN SPINNING SPHERE

Category: F4 Fluid in Motion

Purpose: Show the behavior of a liquid when subjected to a centripetal force.

F4-14: WIND TUNNEL

Category: F4 Fluid in Motion

Purpose: Show air flow around different objects.

F4-05: PARACHUTE TOY

Category: F4 Fluid in Motion

Purpose: Demonstrate how a parachute quickly reaches its terminal velocity.

F4-02: VISCOSITY OF AIR

Category: F4 Fluid in Motion

Purpose: Demonstrate that air is viscous.

F4-01: VISCOSITY OF LIQUIDS

Category: F4 Fluid in Motion

Purpose: Compare the viscosities of water and mineral oil.

F3-31: WATER BELL

Category: F3 Surface Tension

Purpose: Demonstrate surface tension in an artistic manner.

G2-26: COUPLED AIR TRACK GLIDERS

Purpose: Demonstrate coupled oscillations and normal modes in a system of two identical coupled air track gliders.

F3-21: SURFACE TENSION - ALCOHOL AND WATER IN SAND

Category: F3 Surface Tension

Purpose: Illustrate the difference between the surface tension in water and in alcohol.

F3-06: SURFACE TENSION - NEEDLE ON WATER

Category: F3 Surface Tension

Purpose: Illustrate surface tension by floating a needle on water.
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