β Scribed by George Flowers Stradling
No coin nor oath required. For personal study only.
Let us return to the Compfes Rendus of Jan. 15, 19o6. The second paper on the N rays is by Gutton. 1"9'nΒ° Blondlot had found that when N rays fall upon the primary spark gap of ;~ Hertzian oscillator the secondary spark becomes less bright. In the hands of Gutton this receives considerable development. He claims that the diminution of brightness of the secondary spark is very marked. Photogral?hy was used to obtain an impartia! registration of this effect. The secondary spark illuminated a photographic plate for a minute, while the N rays fell on the primary spark. Another part of the plate was acted on by the spark when the N rays no longer reached the primary spark. After development the two images are found to be different. Precautions were taken to avoid any effect due to changes in the primary circuit or to unconscious bias in shifting the photographic plates. Every one of thirty-seven experiments Showed a difference between the two images.
To this experiment the Revue Scientifique "16 objects that though the shifting of the plates was governed by a metronome, yet it was executed by hand and not mechanically. The secondary spark, less stable than the primary, accordingly evokes less confidence even than the primary spark did in Blondlot's photo-*Numerals above the line refer to the numbers of papers in the bibliography at the end of this article.
π SIMILAR VOLUMES
The stability of both the main cometary plasma tail and the tail rays is considered, taking into account the coupling between the plasma and the neutrals that flow out radially from the nucleus. It is shown that this coupling has a negligible effect on wave damping. Rather, we found that the neutral