 | Apart from photovoltaic cells, there is another way to produce electricity with the Sun. This technique uses the Sun to heat water or air in a closed tank. High temperatures are reached by using parabolic mirrors which concentrate the Sun's rays. The heat increases the volume of water or air in the ... »
photovoltaic, tank, parabolic, mirrors, rays
| | Note |  | | Difficulté |  | | Durée | 3h 0 min. | | Date | 05.11.2013 | | Langue(s) | |
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 | 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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 | This Indian lighthouse DIYs project helps to understand how it is possible to produce electricity from a magnet, a copper coil and a movement. The same principle is used in most electricity plants. Depending on the plant, the movement is produced by different means (for instance by transferring ... »
magnet, coil, transferring, steam, turbines
| | Note | | | Difficulté |  | | Durée | 2h 30 min. | | Date | 31.05.2013 | | Langue(s) | |
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 | 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) | |
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 | Concept Building a solar boat is a good way too experiment the use of photovoltaic solar cells. Solar boats are an ecological means of transportation because they use the sun, a renewable and environmental friendly energy. In order to navigate by night and when the sun is too weak, solar boats ... »
experiment, photovoltaic, ecological, renewable, batteries
| | Note | | | Difficulté | | | Durée | 3h 30 min. | | Date | 16.05.2013 | | Langue(s) | |
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