 | This DIYs project demonstrates the principles of printmaking. Without the tools or materials used for linocut, this DIYs project creates prints that children can still be proud of. As the materials used are very simple and inexpensive, it is possible to create a great number of prints and ... »
inexpensive, geneva, curious
| | Note |  | | Difficulté |  | | Durée | 1h 0 min. | | Date | 20.06.2014 | | Langue(s) | |
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 | This disk converts Roman numerals into Arab numerals and vis versa. Learning Roman numerals is a good way to exercise logic and counting. Even if Roman numerals are no more in use today, they can still be found in our daily lives, on monuments, watch dials, to number book chapters, to date films, ... »
converts, versa, dials, geneva, curious
| | Note | | | Difficulté | | | Durée | 0h 30 min. | | Date | 11.10.2013 | | Langue(s) | |
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 | Concept Building a solar boat is a good way too experiment the use of photovoltaic solar cells. Solar boats are an ecological means of transportation because they use the sun, a renewable and environmental friendly energy. In order to navigate by night and when the sun is too weak, solar boats ... »
experiment, photovoltaic, ecological, renewable, batteries
| | Note | | | Difficulté |  | | Durée | 3h 30 min. | | Date | 16.05.2013 | | Langue(s) | |
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 | Building a solar boat helps to understand how photovoltaic solar cells can be used to produce electricity. Toy using solar cells represent often machines that do not exist or which are not logical. It is not uncommon indeed to find toys of helicopters or windmills powered by photovoltaic cells. ... »
photovoltaic, windmills, powered, geneva
| | Note | | | Difficulté |  | | Durée | 3h 0 min. | | Date | 14.05.2013 | | Langue(s) | |
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