Wifehelper LED Air Stirling Engine Funny Education Electricity Power Generator Model Education Model Toy Kit by Amazon.co.uk

• \u3010EDUCATION MODEL TOY\u3011This model can clearly show the trajectory of valve and piston, and help students understand the internal combustion engine and external combustion engine.

• \u3010WORKING PRINCIPLE\u3011The vacuum engine uses the inertia of the flywheel to drive the piston, thereby reducing the pressure in the cylinder.

• \u3010OPRATION\u3011Use an alcohol cotton stick and rotate the flywheel until the machine turns. No water is needed.

• \u3010DURABLE MATERIAL \u3011The Stirling engine is made of high quality materials and elegant craftsmanship. The Stirling engine is precision machined and manufactured, and all parts are surface treated to avoid rust. Oil free.

• \u3010WIDELY APPLICATION\u3011The Stirling engine is a good gift for children's science projects, physical/mechanical learning, teacher demos in the classroom, friends, family, parents, kids, etc.