[Astronomy Time] Color Armillary Sphere | Star Observation Stargazing Teaching Aids Wooden STEAM Certification

**Have you ever thought about using the world's oldest astronomical star observation instrument to observe stars?** **★Obtained US STEM.org certification** **★Selected into the Top 100 STEAM Toys Selected by Domestic Parents and Children** https://live.staticflickr.com/65535/51376178085_f04ecc5997_h.jpg **Star observation time-lapse video** https://www.youtube.com/watch?v=8JkiBzsXTQU Let us fulfill your wish, take you through time and space, and experience the fun of stargazing in ancient times! Using wood with excellent hand feel, a small and lightweight version is developed that is easy to carry. It integrates multiple historical books and completely reproduces the armillary sphere with the three-wheel combination of Liuheyi (outer), Sanchenyi (middle), and Fouryouyi (inner). . Through the assembly process, you can not only bridge the historical gap and understand the exquisite mechanism of the ancients in making armillary spheres, but also truly observe the stars and experience the fun of exploring astronomy. Each part has been professionally deconstructed by engineers to ensure the highest level of tightness and comfort during assembly. The armillary sphere has also been certified by STEM.org in the United States and has been selected as one of the top 100 STEAM toys in the domestic parent-child world. It is an ideal companion for adults and children to observe the sun and the moon. Star's best implementation gadget! **｜Tips on Armillary Sphere｜** Zhang Heng's armillary sphere was based on the "Huntian theory" advocated by him and was made by improving the design of Geng Shouchang in the Western Han Dynasty. "Huntian theory" believes that the celestial body is like an egg ball, the sky is like an egg shell, and the earth is like an egg yolk. The sky encloses the earth, and the flat earth is surrounded by water and floats on the water. "Can the armillary sphere really observe celestial phenomena?" In Zhang Heng's time, people also asked the same question. In order to prove that the armillary sphere can observe celestial phenomena, he conducted tests indoors and accurately stated the positions of stars based on the star orientation displayed by the armillary sphere. This was consistent with the stars observed outdoors and convinced everyone that the armillary sphere could accurately measure celestial phenomena. ! **Introduction to Armillary Sphere** https://www.youtube.com/watch?v=-yDAQfmaENs **➤ Product details** Difficulty level: ★★★★ (five stars is the highest) Assembly time: about 1.5~2 hours Recommended age: 6 years and above Also included in the package: graphic assembly instructions Product size: 12cm྾12cm྾18cm Packing size: 25.5cm྾14.5cm྾3cm Material: MDF Origin: Taiwan **➤ Precautions** • Please use the supplied sandpaper to polish the wooden parts before assembling. Also, be careful of small parts being swallowed by children. • No need to use glue, just install the parts in the correct position and clamp according to the instructions, and confirm the tightness of the assembly of the parts to ensure that the model can be used normally after assembly. • If there are missing parts or other assembly questions, please contact the design studio. • This design museum has a seven-day appreciation period. The appreciation period does not equal assembly and trial use. If there is any assembly, it will affect your return and exchange rights. • When returning or exchanging goods, please keep the outer packaging intact and return related gifts and contents together. Returns will not be accepted if the goods are damaged or have been assembled. **▲ There are discounts for large-volume purchases by educational institutions. Click "Contact Design Center" and a dedicated person will contact you.**