Une étude révèle pourquoi la glace glisse vraiment et remet en question deux siècles de croyances scientifiques.
Polaritons are hybrid particles made up of a photon strongly coupled to an electric dipole. Examples of such a dipole include an electron–hole pair in a semiconductor, which forms an exciton polariton ...
Geomagnetism is the study of the dynamics of the Earth’s magnetic field, which is produced in the inner core. The Earth’s magnetic field is predominantly a geo-axial dipole, with north and south ...
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