Geometrical Optics
L2-01 OPTICAL BOARD - PLANE MIRROR
Category: L2 Plane Mirrors
Purpose:
Demonstrates reflection from a plane mirror
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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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