He stood in this manner for some time; at last the ladle fell from his hand, and its falling appeared to rouse him from his stupor.
With a swift but stealthy pace Jasper came towards us from the farther part of the lane; on reaching the tent he stood still, and looked fixedly upon me as I sat upon the stool; I looked fixedly upon him.
The gipsy's finger was pointed to a particular part of the sky.
Suffice it here to say that the transport, at any considerable velocity, to or from the eye of the gaseous material giving bright or dark lines, can be measured by the displacement of such lines from their previously known normal positions.
The continuity of the latter is interrupted by dark lines (that is, by an absence of light of a definite index of refraction), termed the Fraunhofer lines of the solar spectrum.
This view has received much support from the fact that the extra spectral rays are crossed with numerous dark lines, and that in the chemical impressions these lines are marked by unchanged spaces which exactly coincide with them.
In a few hours, if you lift it very carefully, you will find a number of dark lines on the paper, radiating from a centre like the spokes of a wheel, each line being composed of the spores which have fallen from a fold as it grew ripe.
Here you have something different from either the continuous spectrum of solids, or the bright separate lines of gases, for while you have a bright-coloured band you have also somedark lines crossing it (No.
The data for obtaining the wave-lengths are the distance apart of the lines, the distance of the screen, and the distance apart of the first pair of dark lines on each side of the central bright line.
As one after another was examined, they were found to exhibit spectra of the same general type as that of the sun--a band of colours crossed by dark lines.
In a large proportion of the elements the coloured bands corresponded exactly with a group of dark lines in the spectrum of the sun, in which, therefore, the same terrestrial elements were proved to exist.
Experimentation was naturally turned, however, to terrestrial gases and solids on fire, and it was found that these also produce like series of dark lines in the spectrum.
It was in the year 1802 that the English physicist, William Hyde Wollaston, discovered that the solar spectrum is crossed with a large number of dark lines.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "dark lines" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
