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.
Build a colourful model of the solar system.
Wind-up engine sets your planets in motion around the sun – no batteries required.
Learn about the planets’ celestial orbits.
Explore fundamental gear mechanics; planets travel at different speeds depending on the gear ratio.
Thames and Kosmos
