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F2-23: BUOYANCY PARADOX - INVERTED BLOCK
Category: F2 Buoyancy
Purpose:
Illustrate buoyancy in a paradoxical way.
F2-22: BUOYANCY PARADOX - ACCELERATED FRAME
Category: F2 Buoyancy
Purpose:
Illustrate dramatically the concept of buoyancy.
F2-10: BUOYANT BUBBLES
Category: F2 Buoyancy
Purpose:
Demonstrate buoyancy and diffusion in an interesting way.
F2-04: BUOYANCY - SPHERE AND WATER
Category: F2 Buoyancy
Purpose:
Challenge the students' thinking about the buoyant force by considering the question: "Will a round object, without a flat top and bottom surface, experience a buoyant force, as does a cylinder?"
F2-03: CARTESIAN DIVER - EXPLICIT VERSION
Category: F2 Buoyancy
Purpose:
Demonstrate explicitly how a cartesian diver works by showing how the water enters the diver when the pressure in the cylinder is increased.
N3-41: SPLITTING OF SPECTRUM INTO COMPLEMENTARY COLORS
Category: N3 Color
Purpose:
Show complementary colors by removing a band from the white light spectrum.
N3-33: MAXWELL'S EXPERIMENT - THREE-COLOR MIXING
Category: N3 Color
Purpose:
Demonstrate three-color mixing with positive colors.
N3-31: COLOR SEPARATION TRANSPARENCIES
Category: N3 Color
Purpose:
Illustrate color mixing of negative color transparencies.
F1-21: LIPLESS STRAW
Category: F1 Pressure in Static Fluids
Purpose:
Demonstrate the role of atmospheric pressure in the operation of a drinking straw.
F1-15: PRESSURE GLOBE
Category: F1 Pressure in Static Fluids
Purpose:
To illustrate several interesting phenomena related to air pressure
F1-14: PISTON DIAMETER VS TRAVEL - WORKING MODEL
Category: F1 Pressure in Static Fluids
Purpose:
Show that with an incompressible fluid the bigger piston moves more slowly than the smaller piston.
D5-24: ROTATING PENDULA - LENGTH VS. HEIGHT
Category: D5 Rotational Esoterica
Purpose:
Show that pendula of different length suspended from the same point rotating at the same angular speed rise to the same vertical height.
D5-23: ROTATING BEAD ON LOOP
Category: D5 Rotational Esoterica
Purpose:
Demonstrate the presence of a "critical parameter" which determines the dynamic behavior of a simple physical system.
D5-22: ROTATING PENDULUM
Category: D5 Rotational Esoterica
Purpose:
Demonstrate the presence of a "critical parameter" which determines the dynamic behavior of a simple physical system.
D5-21: BALL ROLLING ON ROTATING DISC
Category: D5 Rotational Esoterica
Purpose:
Show that a sphere rolling on a rotating disc will move in circles.
F1-13: CONSTANT WATER PRESSURE
Category: F1 Pressure in Static Fluids
Purpose:
Demonstrate a mechanism which produces a constant water pressure.
F1-12: PASCAL'S LAW - COILED TUBE PARADOX
Category: F1 Pressure in Static Fluids
Purpose:
Illustrate Pascal's law in a dramatic way.
D5-12: CORIOLIS EFFECT - WATER JET
Category: D5 Rotational Esoterica
Purpose:
Model the Coriolis effect.
D5-11: CORIOLIS EFFECT - BALL ON ROTATING PLATFORM
Category: D5 Rotational Esoterica
Purpose:
Illustrate the Coriolis effect.
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E2-01: WORLD GLOBE
Illustrate the globe Read More
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E2-02: MEASUREMENT OF RADIUS OF EARTH
Demonstrate how the radius of the earth can be measured using trigonometry.
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E2-03: CRATER FORMATION MODEL
Illustrate how a crater forms as a result of an impact or a blast from below.
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E2-11: SOLAR PLASMA MODEL
Mass driver and ring heater show coronal holes and coronal heating.
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E2-12: FUSION MODEL
Demonstrate how nuclei attract each other if they come close enough together.
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E2-13: SUNSPOT MODEL
Show how sunspots are darker than their surroundings due to lower temperatures.
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E2-21: PHASES OF THE MOON
Show the relationship between the phases of the moon and the relative earth-sun-moon positions. Read More
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E2-22 UMBRA AND PENUMBRA
Illustrates shadow umbra and penumbra Read More
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E2-23: UMBRA AND PENUMBRA - EXTENDED SOURCE
Show umbra and penumbra with an extended source, as in an eclipse.
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E2-24: UMBRA AND PENUMBRA - COLOR FILTERS
Identify the source of penumbra regions.
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E2-31: SOLAR SYSTEM MODEL
Illustrate the approximate angular disposition of the planets around the sun.
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E2-32: EPICYCLE MODEL - PTOLEMAIC SYSTEM OF PLANETS
Illustrate the epicycle nature of Ptolemy's model of the solar system
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E2-33: RETROGRADE MOTION
Demonstrate the observation of another planet as seen from the earth.
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E2-34: BASIC ORRERY (PLANETARIUM)
Demonstrate the sun-earth-moon spatial relationship and related concepts..
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E2-35: PLANETS - RELATIVE SIZES MODEL
Illustrate the relative sizes of the planets Read More
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E2-36: DENSITY STRATIFICATION - FORMATION OF PLANETS
Demonstrates how density stratification (differentiation) in interior of planets occurs.
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E2-37: PLATONIC SOLIDS AND KEPLER
Visualize the Platonic solids and Kepler's dream for using them to explain planetary orbits.
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E2-41: TRANSPARENT CELESTIAL GLOBE
Illustrate some relationships between the earth, the sun, and certain heavenly bodies
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E2-42: TELESCOPE MODEL
Show how a telescope can view any point in the sky using a universal mount.
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E2-43: ROTATING STAR FIELD
Show the apparent motion of the night sky.
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E2-44: BINARY STAR MODEL
Illustrate the orbital motion of a binary star system.
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E2-45: ECLIPSING BINARY STAR MODEL - LIGHTS
Show how we view a rotating binary star.
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E2-46: ECLIPSING BINARY STAR MODEL - SPHERES
Illustrate the orbits of stars in an eclipsing binary.
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E2-47: TWINKLING STAR
Show how air currents cause the "twinkling" of a star.
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E2-48: NON-TWINKLING PLANET
Illustrate why a planet does not "twinkle" like a star.
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E2-49: PULSAR MODEL - RADIOWAVES
Show the changing field pattern from a rotating dipole.
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E2-50: PULSAR MODEL - FLASHLIGHTS
Illustrate beaming pattern of pulsars and pulsed binary X-ray sources.
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E2-51: GRAVITATIONAL COLLAPSE - MODEL
Model gravitational collapse.
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E2-53: STELLAR EVOLUTION - HYDROGEN BURNING
Provides models for hydrogen burning to produce helium in stars via the proton-proton chain.
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E2-54: REFLECTING TELESCOPE - STRING MODEL
Shows how rays are focused by a standard reflecting telescope. Read More
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E2-61: GALAXY MODEL
Illustrate our galaxy.
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E2-62: SPIRAL GALAXY - WATER MODEL
Show that "permanent" spiral structure can exist as a wave which moves independently from the fluid
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E2-63: EXPANDING UNIVERSE
Demonstrate the concept of the expansion of the universe.
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E2-71: MILLISECOND PULSAR
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E2-72: AUDIOTAPE 14 MIN - NRAO PULSAR
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E2-73: AUDIOTAPE 18 MIN - SOUNDS FROM SPACE
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