Fitxer:Oresme.jpgDescriptionOresme.jpg English: First page of the book "Traité de l'espère". The miniature represents Nicole Oresme busy at his studies, with an armillary
Fitxer:Oresme Spheres.jpgDescriptionOresme Spheres.jpg Le livre du Ciel et du Monde Illustration of the Celestial spheres Note that although the order of the spheres is conventional