 | The construction of wind or water turbines connected to a small generator (alternator) allows to experiment two different ways of transforming motion into electricity.Most power plants in the World produce the movement required to opterate the alternator by heating water with coal, natural ... »
turbines, generator, alternator, experiment, transforming
| | Note |  | | Difficulté |  | | Durée | 2h 0 min. | | Date | 05.11.2013 | | Langue(s) | |
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 | Building a solar house model helps to understand how it is possible to use the power of the Sun to save energy or even to be completely independent from the energies we normally use in our buildings. Even if they are still rare, some buildings already use only renewable energies. These 'autonomous ... »
energies, renewable, air-tight, illustration
| | Note | | | Difficulté |  | | Durée | 4h 0 min. | | Date | 16.05.2013 | | Langue(s) | |
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 | This DIYs project is a good way to discover the power of the Sun, and the use of a renewable energy to cook without polluting or increasing deforestation. The portable solar cooker uses 3 principles: the greenhouse effect, the concentration of light with reflective panels and the ability of black ... »
renewable, polluting, deforestation, greenhouse, reflective
| | Note |  | | Difficulté | | | Durée | 2h 30 min. | | Date | 15.05.2013 | | Langue(s) | |
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 | Building a steamboat helps to understand how it is possible to tranform heat into a mouvement. If some water is heated in a closed container and evaporates, a pressure is created inside. This pressure is due to the increase of water volume during its transformation into steam (steam takes about ... »
steamboat, heated, container, evaporates, steam
| | Note | | | Difficulté | | | Durée | 3h 0 min. | | Date | 14.05.2013 | | Langue(s) | |
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