dark lines
Gaps in light
Dark lines most commonly refers to absorption lines in a spectrum—the gaps where specific wavelengths of light are absorbed by atoms or molecules, appearing as dark bands against a bright background.
In spectroscopy, these patterns identify elements in stars and other light sources: The dark lines in the sun's spectrum reveal its chemical composition.
More generally, dark lines can simply mean lines that are dark in color or poorly lit.
- shadowsDark areas from blocked light
- stripesParallel linear markings
- absorptionProcess of taking in
- spectrumContinuous range of values
- spectralGhostlike or wavelength-related
barcode · zebra · tiger stripes · ruled · ruled paper · etched · grooves · eclipse · silhouette · contrast · black bars · ink · charcoal · sketch · hatching · parallel · streaks · veins
- absorption spectraBalmer series, absorbance
- spectral linesemission spectrum, Balmer series
- nailsnails, common nail, fingernails, finishing nail, toenails
- hatchingegg, embryo, incubator, chick, hatchlings
dark linesbright lines
Spectral markers from excited atoms
emission spectrum · white lines · white stripes · Fraunhofer lines
dark, darken, darkened, darkening, darkens, darker, darkest, darkly, darkness