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'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
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Duration2h 0 min.
Date22.07.2022
Language
français english

Perpetual calendar

This calendar indicates the day of the week of every date between 1600 and 2299.   With it, you can know what day of the week you were born or if you will have the chance to celebrate your 50th anniversary on a Saturday.   This project can be part of the study of calenders from the astronomical or ... »
astronomical
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Duration2h 0 min.
Date20.07.2022
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