Descripteurs (mots-clés)
trié(s) par (Pertinence décroissant(e), Titre croissant(e))
Visionner les documents numériques
Affiner la rechercheEtendre la recherche sur niveau(x) vers le bas
Article
Shadows produced by sunlight reflected from convex surfaces can be very well defined. This article provides an explanation for this phenomenon as well as a demonstration/lab activity for students to investigate properties of shadows made from su[...]Article
Le microscope opératoire est un dispositif médical clé pour la microchirurgie. Il a été introduit dans les blocs opératoires au début des années 1920 et n'a cessé d'être amélioré au fil du temps pour devenir, aujourd'hui, un appareil complexe do[...]Article
Birefringent materials, such as calcite and quartz, are so named because they have two refractive indices. In this article we demonstrate how the optical properties of birefringent materials may be observed and photographed.Livre
Livre
Elsa Thiriot, Auteur ; Oreli Gouel, Illustrateur | Paris : Mango | Apprendre en s'amusant (Paris), ISSN 2742-4855 | 2020Par le jeu, l'enfant devient acteur de ses apprentissages ! Des activités ludiques et pédagogiques qui éveillent l'intérêt de l'enfant pour les sciences, renforcent ses acquis et développent sa confiance en lui. Jeux lumineux : avec des outils t[...]Article
The eye should have a particular focal length in order to see an object. As there are many things to see, the focal length of the eye must vary because these things are not all at the same distance from the eye. We explore the eye accommodation [...]Article
Nuri Balta, Auteur |In introductory texts, some “special” rays are selected to draw the image produced by lenses and mirrors. After teaching special rays, students usually ask how to draw an arbitrary ray. One method for drawing an arbitrary ray is the tilted princ[...]Livre
Livre
Article
In recent years, with the more powerful functions of smartphones, the use of sensors integrated by mobile phones as an auxiliary tool for physical experiment teaching has become more popular. Combined with the related mobile phone apps, people e[...]Article
White light refracted by a glass edge or a prism might be split into the colors of the rainbow but, when restricted by a suitable arrangement of edges, might also yield a sequence of colors complementary to the rainbow. We studied the creation o[...]Article
Arnab Pal, Auteur ; Pradipta Panchadhyayee, Auteur ; Kriti R. Sahu, Auteur ; Debapriyo Syam, Auteur |The refractive index is a number that governs how light changes its direction of propagation as it enters one material medium from another. This phenomenon is known as refraction and the angles of incidence and refraction of light, referred to t[...]Article
The falling temperature of the photosphere with height is responsible for the effect known as limb darkening. The Sun is not equally bright all over the disc. When we observe the Sun towards the limbs, it appears to get darker. Light from the ph[...]
