. The Becquerel rays and the properties of radium . Fio. 9.—Tube for showing the canal rays, a is the (perforated) cathnde, and b theanode. The canal rays issue through the hole at the bajk of the cathode, and causephosphorescence on the glass at c. sufficient to carry them through it. They strike onthe w^alls of the tube, and, like the cathode rays,produce phosphorescence at the point of impact. The positive rays are far less conspicuous thanthe cathode rays. They w^ere discovered by Gold-stein, long after the cathode rays were well called them canal rays, in allusion to the factthat


. The Becquerel rays and the properties of radium . Fio. 9.—Tube for showing the canal rays, a is the (perforated) cathnde, and b theanode. The canal rays issue through the hole at the bajk of the cathode, and causephosphorescence on the glass at c. sufficient to carry them through it. They strike onthe w^alls of the tube, and, like the cathode rays,produce phosphorescence at the point of impact. The positive rays are far less conspicuous thanthe cathode rays. They w^ere discovered by Gold-stein, long after the cathode rays were well called them canal rays, in allusion to the factthat they were obtained through a channel in thecathode. It has been found that the canal rays, like thecathode rays, are deflected by a magnet; this deflec-tion is in the opposite direction to that of the cathoderays, and is far smaller. A magnetic form sufficientto curl up the cathode rays into a very small circlewould scarcely deflect the canal rays to any measur-able extent. Canal rays, too, are deflected by anelectro-static field, in the opposi


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectradioac, bookyear1906