 | Building this DIYs project helps to understand how wind turbines work and generally how to transform a mechanical movement into electricity. This principle can be found in devices we use every day (bicycle dynamo, car alternator, etc.). The same principle is also used by most of our electricity ... »
turbines, transform, bicycle, dynamo, alternator
| | Note |  | | Difficulté |  | | Durée | 2h 0 min. | | Date | 24.05.2013 | | Langue(s) | français deutsch english |
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 | This DIYs project shows how to build an ecological air conditioning system. The electricity of the fan is generated by a photovoltaic cell and the air is cooled simply by evaporating water. Conventional air conditioners are very energy consuming. They work like a fridge and need a lot of ... »
ecological, conditioning, photovoltaic, cooled, evaporating
| | Note |  | | Difficulté |  | | Durée | 3h 30 min. | | Date | 17.05.2013 | | Langue(s) | français deutsch english |
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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
| | Note | | | Difficulté |  | | Durée | 3h 30 min. | | Date | 14.05.2013 | | 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 shows how it is possible reach high temperatures by concentrating the sun's rays. This technique is already used in experimental thermal power plants in California and France. These plants concentrate the sun's rays in a single point with a field of mirrors. Like in most power ... »
concentrating, rays, mirrors, powering, turbine
| | Note | | | Difficulté | | | Durée | 2h 30 min. | | Date | 14.05.2013 | | Langue(s) | français deutsch english |
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