Blog Ekkehard Friebe

Es folgt nachstehend die Fortsetzung von Kapitel 4 (Chapter 4) aus dem Buch von
Professor Wallace Kantor „Relativistic Propagation of Light„:

Zitat:

BECKMANN-MANDICS EXPERIMENT

The same assumption for the change of speed for the reflection of light at grazing incidence was made by Beckmann in the experiment by Beckmann and Mandics. [8] A contradiction with Fermat’s principle of least time is also explicitly made in that the angle of reflection r, shown in Fig. 1, is equal to the angle of grazing incidence i, even though the speeds of the incident and reflected light are assumed unequal. Beckmann and Mandics repeated the Tolman experiment in air and in vacuum fifty-four years later in 1964. Their moving light source, without the presence of a slit, was established by means of the reflection of light incident at 15° on a tiny mirror mounted on a rotor at 12.8 cm from the axis of rotation. For the reasons already given, their other null result experiments with a stationary-slit light source are inconclusive, and need not be discussed.

In Fig. 1, f  is the perpendicular distance of a particular fringe from the plane of the mirror. The integer number or order of a fringe increases (or decreases) directly with f. The perpendicular distance of the source from the plane of the Lloyd mirror is s, and s‘ is the equidistant mirror image of s. The plane of observation of the fringe field is at distance L normal to the line ss‘ and d is the perpendicular distance of the point of reflection, on the Lloyd mirror, from ss‘.

(Zitatende)

Die Fig. 1 und den weiteren Text finden Sie hier!

Beste Grüße Ekkehard Friebe