Demonstrate night and day, the seasons, phases of the moon, and eclipses with this robust and flexible model. More accurate demonstrations are made possible with two different sizes of Earth and Moon setups, and geared manual rotation system. In the large-scale setup, a powerful light casts visible shadows onto the 4 " Earth. The smaller version demonstrates the phases of the moon and frequency of solar and lunar eclipses as the moon rotates on an inclined orbit. Size: 25"L x 9 7/8".
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