Ugears is proud to present the Mechanical Tellurion, an accurate wooden model representation of our corner of the universe. A tellurion (also spelled tellurian, tellurium, and sometimes called a loxocosm), is an ingenious mechanism that depicts the cosmic dance between 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. A tellurion (from the Latin tellus, meaning "earth") is related to the orrery, which illustrates the relative positions and motions of the planets and moons in the solar system in a heliocentric model.