Mechanical Tellurion

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Assemble me. Spin the Earth! Ugears is proud to present the Mechanical Tellurion, an accurate wooden model representation of our corner of the universe. A tellurion is an ingenious mechanism that depicts the cosmic dance between the Sun, Earth, and Moon. The causes of day and night, the phases of the Moon, and the changing seasons are seen and understood according to the movements of this 3D puzzle. Turn the handle to set the closely calibrated system of gears in motion. Point to a spot on Earth's surface, observe the spinning Earth's position relative to the Sun, and visualize sunrise and sunset, the passage of day into night. The Tellurion charts the passage of the seasons, while also giving a beautiful graphic representation of the zodiac, showing the sign and constellation under which you were born. The Ugears Mechanical Tellurion can be manually adjusted or "tuned". When "tuning" the mechanism, set the pointer to the middle of winter or summer on the seasons dial. The earth, on its tilted axis, can be rotated to have either hemisphere be farthest from the sun in the bleak midwinter, or closest to the sun in summer. Turn the handle the correct number of days forward or back, from whichever solstice is closest in time, to set the present day. After consulting a lunar calendar, use the upper gear disk to adjust the position of the moon to its correct phase. Your Tellurion is now "set." With each passing day, give the model one turn of the crank to chart the earth's progress around the sun, and the moon's lunar cycle as it orbits the earth. Mechanical Tellurion features: Functional mechanical tellurion Depicts the cosmic dance between the Sun, Earth, and Moon Manually driven by turning the handle One turn of the handle = one rotation of the Earth on its axis = one day Depicts the Earth's 23.5-degree axial tilt Includes graphic representations of the zodiac signs DIY wooden model features: Pre-laser-cut wooden parts Assembles without glue or tools Step-by-step instructions in 11 languages Free spare parts upon request Show more