. The London, Edinburgh and Dublin philosophical magazine and journal of science. Avas parallel with the field,the same effect of separation of the line into two was observed,and was even more clearly marked than in the transversedirection, but the broadening was inappreciable. Thisappears from an inspection of figs. 7 and 8. The fact that broadening occurs only or chiefly when thepencil of light is at right angles with the field may possiblybe accounted for by an increase of velocity of the radiatingatom in this direction. This is what should be expected ifthe atom is electrified and in motio
. The London, Edinburgh and Dublin philosophical magazine and journal of science. Avas parallel with the field,the same effect of separation of the line into two was observed,and was even more clearly marked than in the transversedirection, but the broadening was inappreciable. Thisappears from an inspection of figs. 7 and 8. The fact that broadening occurs only or chiefly when thepencil of light is at right angles with the field may possiblybe accounted for by an increase of velocity of the radiatingatom in this direction. This is what should be expected ifthe atom is electrified and in motion ; for then a velocity atright angles with the original one would be added, giving aresultant velocity greater than before. The effect of thisincreased velocity would be a displacement of the corre-sponding spectral line proportional to the component of thevelocity in the line of sight due to the Doppler effect; and Radiation in a Magnetic Field. 115 as the increased velocity occurs only in the equatorial plane,the broadening would be observed chiefly in this plane *. Fig. Fisr. 8.
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Keywords: ., bookcentury1800, bookdecade1840, bookidlondon, booksubjectscience
