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Résultats de la recherche

Led lamp

This project goal is to build a simple table lamp using an LED bulb. This is an opportunity to present tje many adavantages of light emitting diodes (LED) which have now replaced the classic incandescent light bulbs in Europe : Very good energy efficiency (for the same amount of light, LED bulbs ... »
lamp, bulb, emitting, diodes, incandescent
Note
Difficulté
Durée2h 0 min.
Date22.07.2022
Langue(s)
français english

Solar Steam machine

This project demonstrates that it is possible to use the heat of the sun to produce a movement.   The technical principle consists of boiling a liquid (e.g. water) in a closed tank using solar energy. To obtain a temperature sufficient to boil water, parabolic mirrors are used to focus the sun's rays ... »
boiling, tank, boil, parabolic, mirrors
Note
Difficulté
Durée2h 0 min.
Date22.07.2022
Langue(s)
français english

Biogas plant

The construction of a biogas plant model helps to understand how it is possible to produce gas from animal or plant organic waste. As the materials used are renewable and local, biogas is sustanable and reduces the use of non-renewable and polluting energies.   Biogas installations generally ... »
biogas, organic, renewable, reduces, non-renewable
Note
Difficulté
Durée3h 0 min.
Date22.07.2022
Langue(s)
français english

An elephant under pressure

This amusing project imitates the movement a an elephant trunk.   In reality, the way an elephant trunk works is very complex and researchers are trying to understand its mechanism because it could be used, among other things, to improve robotic arms.   This project was developped for the magazine ... »
trunk, robotic, geneva
Note
Difficulté
Durée1h 0 min.
Date22.07.2022
Langue(s)
français english

Amazon rainforest in a bottle

This project creates a micro-climate in a PET bottle that mimics the functioning of a rainforest.   It is a kind of terrarium that, if you are lucky, is self-sufficient and runs on its own cycle.   An Englishman, Mr Latimer, was had this chance and his terrarium, enclosed in a large glass bottle, has ... »
mimics, rainforest, latimer, enclosed, info
Note
Difficulté
Durée1h 0 min.
Date22.07.2022
Langue(s)
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