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Solar flashlight

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
Durée2h 30 min.
Date20.07.2022
Langue(s)

Vertical axis wind turbine

Building this 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
Durée2h 0 min.
Date20.07.2022
Langue(s)

Solar hot water panel

The construction of a solar hot water panel helps to understand how it is possible to heat water with the Sun. The basic principle is to circulate water in a black pipe placed behind a glass exposed to the Sun. Thanks to the greenhouse effect and the black colour that absorbs most of the Sun's rays, it is ... »
circulate, pipe, greenhouse, absorbs, rays
Note
Difficulté
Durée2h 30 min.
Date20.07.2022
Langue(s)

Lighthouse

This Indian 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 the strength of ... »
magnet, coil, transferring, steam, turbines
Note
Difficulté
Durée2h 30 min.
Date20.07.2022
Langue(s)
english français

Solar oven in a jar

This project of a solar oven was part of a contest organised by the Juvene Foundation and the Swiss television (RTS-découvertes) during Summer 2011. The idea was to propose an easy experiment which needed only extremely cheap and easy to find materials and which would encourage children to ... »
experiment, insulating, rays, greenhouse, panels
Note
Difficulté
Durée2h 0 min.
Date20.07.2022
Langue(s)
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