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Series

La science à découvert

19 episodes
La science à découvert tells the stories of scientific discoveries from the dawn of science through to the present day, covering all fields—from astronomy to chemistry, biology, and mathematics.
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  • video_library Episodes (4)
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E17 : Rien ne se perd, rien ne se crée, tout se transforme .

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At the end of the 18th century, Antoine de Lavoisier, a mathematician and chemist, asserted that in all the reactions in his experiments, “nothing is lost, nothing is created, everything is transformed,” but he could not actually prove it.
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E18 : Ça coule, ça flotte .

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While attempting to verify the purity of a crown in a bath of liquid, Archimedes discovered the principle of buoyancy, according to which any object immersed in a liquid experiences an upward force equal to the weight of the displaced fluid.
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E19 : À la recherche de l'infiniment petit .

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Since antiquity, the concept of the atom evolved from Democritus's idea of indivisible particles to a defined chemical unit through the work of Lavoisier and John Dalton.
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E20 : L'électricité, c'est de la chimie .

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While studying the electrolysis of water in the early 19th century, Michael Faraday formulated its fundamental laws, establishing principles that are still widely used in industry today.
    Levels:
    Elementary Grade 7 Grade 8 Secondary Grade 9 Grade 10 Grade 11 Grade 12
    Subjects:
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    Skills:
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