 | Solar energy is commonly used to produce hot water or electricity for our buildings. Another, lesser known use is for drying food.This technology allows fruit, vegetables, fish or meat to be dried without the use of fossil fuels and pollutants. With less moisture, food can be stored for long ... »
drying, fossil, fuels, pollutants, moisture
| | Note |  | | Difficulté |  | | Durée | 3h 0 min. | | Date | 25.07.2022 | | Langue(s) | |
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 | In the Toules dam near the Great St. Bernard pass (Switzerland), an artificial island with 2,240 m2 of photovoltaic solar collectors has been built. In the canton of Glarus (Switzerland), the wall of the Muttsee dam has been covered with solar cells. These high-altitude solar power plants offer ... »
photovoltaic, collectors, high-altitude, altitudes, cloud
| | Note | | | Difficulté |  | | Durée | 2h 30 min. | | Date | 22.07.2022 | | Langue(s) | |
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 | This project illustrates in a simplified way the drilling techniques used in deep geothermal energy. Geothermal energy concerns the heat (thermal) found in the earth's subsoil (geo). This energy comes mainly from the earth's core, whose heat is considered, on a human scale, as an almost ... »
illustrates, simplified, drilling, geothermal, infinite
| | Note |  | | Difficulté |  | | Durée | 0h 30 min. | | Date | 22.07.2022 | | Langue(s) | |
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 | This project demonstrates that it is possible to use the heat of the sun to produce a movement. The technical principle consists of boiling a liquid (e.g. water) in a closed tank using solar energy. To obtain a temperature sufficient to boil water, parabolic mirrors are used to focus the sun's rays ... »
boiling, tank, boil, parabolic, mirrors
| | Note |  | | Difficulté | | | Durée | 2h 0 min. | | Date | 22.07.2022 | | Langue(s) | |
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 | The construction of a biogas plant model helps to understand how it is possible to produce gas from animal or plant organic waste. As the materials used are renewable and local, biogas is sustanable and reduces the use of non-renewable and polluting energies. Biogas installations generally ... »
biogas, organic, renewable, reduces, non-renewable
| | Note | | | Difficulté | | | Durée | 3h 0 min. | | Date | 22.07.2022 | | Langue(s) | |
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