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Design and energy saving lamp

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
Durée2h 30 min.
Date13.05.2013
Langue(s)

Hydroelectric power plant 1

This DIYs project helps to understand how hydropower (energy from water in motion) can be transformed into electricity. Hydropower is a renewable energy regenerated through the water cycle. The Sun powers this cycle by evaporating water (from e.g. rivers, lakes or seas). This water condenses ... »
hydropower, renewable, regenerated, evaporating, lakes
Note
Difficulté
Durée3h 0 min.
Date13.05.2013
Langue(s)

Solar electric motor

This project helps to understand how an electric motor works (how it is possible to create a movement with electricity). Many electrical appliances use this technique  (mixer, cd player, hair dryer, etc.). By generating electricity from the Sun, this DIY shows that there are alternative energy ... »
motor, appliances, dryer, generating, renewable
Note
Difficulté
Durée3h 0 min.
Date13.05.2013
Langue(s)

Educated monkey

Inspired by an American tin toy of around 1916, this educated monkey performs multiplications without any mistake.   His feet show the two numbers to multiply and a hole above his hands shows the correct result.   The mechanism of this DIYs project is very interesting and can be studied and ... »
multiply, hole
Note
Difficulté
Durée0h 45 min.
Date08.05.2013
Langue(s)

Thermometer and monitoring board

In order to adjust a central heating and save energy, room temperatures must be measured with a thermometer.   The thermometer was invented in the 17th century and its working principle is still used today. Household thermometers contain, inside a glass tube, a small amount of coloured alcohol ... »
adjust, thermometer, thermometers, tube, expands
Note
Difficulté
Durée2h 0 min.
Date08.05.2013
Langue(s)
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