 | 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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 | Building a lamp with energy saving bulbs demontrates that it is possible to create a nice looking lamp delivering a good an strong light while consuming 5 times less energy. This model uses two bulbs in order to vary the light intensity. This is usally impossible with standard energy saving lamps. ... »
lamp, bulbs, intensity, lamps, lighting
| | Note | | | Difficulté |  | | Durée | 2h 30 min. | | Date | 13.05.2013 | | Langue(s) | français deutsch english |
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 | Building this very special Anti-monster flash light & buzzer is a nice way to experiment an electrical circuit a bit more complex than the usual battery/bulb/switch one. Beware that once completed, this is a very noisy device... This DIYs project uses a very energy efficient ... »
flash, experiment, bulb, noisy, emitting
| | Note | | | Difficulté |  | | Durée | 2h 0 min. | | Date | 03.05.2013 | | Langue(s) | français deutsch english |
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 | Bulding a bicycle electricity generator helps to understand how it is possible to produce electricity from a magnet, a copper wire coil and a movement. This technique found in traditional bicycle dynamos is also used in electric power stations. Unlike a traditional bicycle dynamo, this project ... »
bicycle, generator, magnet, wire, coil
| | Note | | | Difficulté | | | Durée | 3h 0 min. | | Date | 20.12.2012 | | Langue(s) | français deutsch english |
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