In 1954, three scientists observed a paradox to which they gave their name: the Fermi-Pasta-Ulam recurrence. Now, fibre optics are on the way to finally providing an explanation.
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En 1954, les scientifiques du projet Manhattan observèrent un paradoxe auquel ils laissèrent leur nom : Fermi, Pasta et Ulam. Les fibres optiques sont en passe de permettre une explication. Enfin.
To understand what is happening in an optical fibre, physicists can mimic a rupture of the flow of grains of light – the photons – thanks to a laser device.
