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Set the planets in motion with a flick of your wrist! Build a mechanical model of the solar system including the sun and eight planets (also known as an orrery), wind it up, and watch the planets revolve around the sun. Assemble this complex machine using snap-together plastic parts to learn how the gears and wind-up mechanism work to spin the model. Detail each planet with colourful, realistic-looking printed planet graphics. Discover how a special type of gear called a planetary gear is used to simulate the mesmerizing motion of the planets. Learn about the order of the planets, their relative sizes, their rates of revolution around the sun, their appearance, and other planetary facts. Bonus: There’s a built-in expansion slot in case the mysterious Planet Nine is discovered! Features – Wind-up engine sets your planets in motion – no batteries required – Learn about the planets’ celestial orbits. – Explore fundamental gear mechanics; planets travel at different speeds depending on the gear ratio. Contents Colour Brand: Thames & Kosmos Size: 25.4cm × 28cm × 6.4cm Suitable For Age: 8 Yrs Pack Contents: Full-colour step-by-step illustrated assembly instructions, Note: Warning! Not suitable for children under 3 years. Choking hazard — small parts may be swallowed or inhaled. Share Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Pinterest (Opens in new window) Pinterest Share on WhatsApp (Opens in new window) WhatsApp Email a link to a friend (Opens in new window) Email
This product has multiple variants. The options may be chosen on the product page
This product has multiple variants. The options may be chosen on the product page
This product has multiple variants. The options may be chosen on the product page
This product has multiple variants. The options may be chosen on the product page