 | Building a solar torch (flashlight) helps to understand how it is possible to store the energy of the Sun and use it later at night. photovoltaic cells transform the energy of the sun in electricity that can be stored in a rechargeable battery. Photovoltaic cells are now widely used and can be even ... »
torch, flashlight, photovoltaic, transform, rechargeable
| | Note |  | | Difficulté |  | | Durée | 2h 30 min. | | Date | 17.05.2013 | | Langue(s) | français deutsch english |
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 | Building this torch (flashlight) helps to understand how it is possible to transform mechanical energy into electricity. This type of transformation is achieved in most of our power plants. This DIYs project reveals all the components of an electric generator. By using a small electric motor ... »
torch, flashlight, transform, generator, motor
| | Note |  | | Difficulté |  | | Durée | 3h 0 min. | | Date | 16.05.2013 | | Langue(s) | français deutsch english |
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 | Making a battery helps to understand how a chemical reaction can produce electricity. It shows also that in a battery there is no real stock of electricity, but the chemical products needed to generate some. It is important to understand how batteries work as they are more and more used in our daily ... »
batteries, pads, polluting, kilowatt-hour, mains
| | Note | | | Difficulté |  | | Durée | 3h 0 min. | | Date | 16.05.2013 | | Langue(s) | français deutsch english |
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 | The construction of a small steam engine helps to understand how this technology can 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, heated, container, evaporates, turbine
| | Note | | | Difficulté | | | Durée | 2h 30 min. | | Date | 14.05.2013 | | Langue(s) | français deutsch english |
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 | This DIYs project helps to understand how hydroelectric plants work and generally how a mechanical movement can be transformed into electricity. With this DIYs project, children build the entire system including the coper reels, a disc with magnets and a turbine. When the magnets will move ... »
hydroelectric, magnets, turbine, bicycle, alternators
| | Note | | | Difficulté | | | Durée | 3h 0 min. | | Date | 14.05.2013 | | Langue(s) | français deutsch english |
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