Solar energy heats the interior air of the container and the interior metal foils. The indoor air becomes less dense and convective air currents are formed that cause the sheets to move. In this way we explain the physical principle of the transformation of energy. Luminous to Calorific and calorific to kinetic.
- Diameter: 110mm
- Weight: 90gr
Produit conforme à mes attentes. Très bien emballé. Je recommande
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