TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

The safest way to observe the partial phases of an eclipse is by using the projection method. It provides a clear view of the sun and does not risk damage to anyone when handled correctly.  2, fiche 1, Anglais, - projection%20viewing%20method

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

Plusieurs méthodes d'observation par projection permettent d'observer indirectement l'éclipse solaire de façon sécuritaire. Ces méthodes simples font appel aux objets du quotidien et permettent une observation collective du phénomène, car plusieurs personnes peuvent observer une même projection en même temps.  1, fiche 1, Français, - m%C3%A9thode%20d%27observation%20par%20projection

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

Similar Triangles. When viewing objects in the real world, the light rays from the objects within the viewer's field of view enter the eye radially rather than in parallel as in the orthographic projection. The eye is very small compared to the scene it is viewing, and the light rays are projected to the point(the eye) rather than a plane. The equations for the projection are derived using the "similar triangles" method, where the triangle formed by the viewer's eye, space z, and space point is similar to that formed by the eye, the screen distance from the viewer's eye, and the screen point.  1, fiche 2, Anglais, - similar%20triangles

Fiche 2,  Justifications,  Français

Fiche 2,  Justifications,  Espagnol