 | 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
| | Rating |  | | Difficulty |  | | Duration | 3h 30 min. | | Date | 16.05.2013 | | Language | |
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 | The use of sun energy is not limited to photovoltaic cells for electricity or solar thermal collectors for heating. Other ideas exist, often still experimental, like the solar chimney. A huge project of this type is planned in Australia with a tower 1 km high! The construction of a solar chimney ... »
photovoltaic, collectors, chimney, greenhouse, absorption
| | Rating |  | | Difficulty |  | | Duration | 3h 0 min. | | Date | 16.05.2013 | | Language | |
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 | This projects helps to understand how a wind generator works and more generally how it is possible to transform mecanical energy into electricity. This principle can be found in many devices that we use every day (bicycle dynamo, car alternator, etc.) and is the way we produce most of our ... »
generator, transform, bicycle, dynamo, alternator
| | Rating | | | Difficulty |  | | Duration | 3h 30 min. | | Date | 14.05.2013 | | Language | |
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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
| | Rating | | | Difficulty | | | Duration | 3h 0 min. | | Date | 14.05.2013 | | Language | |
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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
| | Rating | | | Difficulty |  | | Duration | 2h 30 min. | | Date | 13.05.2013 | | Language | |
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