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Solar food dehydrator

Solar energy is commonly used to produce hot water or electricity for our buildings. Another, lesser known use is for drying food.This technology allows fruit, vegetables, fish or meat to be dried without the use of fossil fuels and pollutants. With less moisture, food can be stored for long ... »
drying, fossil, fuels, pollutants, moisture
Note
Difficulté
Durée3h 0 min.
Date25.07.2022
Langue
français english

Pumped-storage hydroelectricity

In the Toules dam near the Great St. Bernard pass (Switzerland), an artificial island with 2,240 m2 of photovoltaic solar collectors has been built. In the canton of Glarus (Switzerland), the wall of the Muttsee dam has been covered with solar cells. These high-altitude solar power plants offer ... »
photovoltaic, collectors, high-altitude, altitudes, cloud
Note
Difficulté
Durée2h 30 min.
Date22.07.2022
Langue
français english

Geothermal model

This project illustrates in a simplified way the drilling techniques used in deep geothermal energy.   Geothermal energy concerns the heat (thermal) found in the earth's subsoil (geo). This energy comes mainly from the earth's core, whose heat is considered, on a human scale, as an almost ... »
illustrates, simplified, drilling, geothermal, infinite
Note
Difficulté
Durée0h 30 min.
Date22.07.2022
Langue
français english

Faraday torch

Building a Faraday* torch 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 ... »
faraday, torch, magnet, coil, transferring
Note
Difficulté
Durée4h 0 min.
Date22.07.2022
Langue

'Perpetual' motion machine

Since ancient times, scientists have wondered whether it would be possible to create a machine that, once started and without adding extra energy, would never stop. Even Leonardo da Vinci tried to imagine such a mechanism, but found it impossible.   Even if we know it's impossible, some people are ... »
perpetual, mathematician, prevents, validated, mechanics
Note
Difficulté
Durée2h 0 min.
Date22.07.2022
Langue
français english
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