 | 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 |  | | Durée | 2h 0 min. | | Date | 22.07.2022 | | Langue(s) | |
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 | 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 |  | | Durée | 2h 0 min. | | Date | 22.07.2022 | | Langue(s) | |
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 | 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 | | | Durée | 3h 0 min. | | Date | 22.07.2022 | | Langue(s) | |
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 | 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 |  | | Durée | 1h 0 min. | | Date | 22.07.2022 | | Langue(s) | |
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 | 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 | | | Durée | 1h 0 min. | | Date | 22.07.2022 | | Langue(s) | |
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