Bright meteors often emit the bluish-white light suggestive of burning magnesium.
Beneath the cuticle of these regions are situated the luminous organs, consisting of layers of cells which may be regarded as a specialized portion of the fat-body) Both the male and female fireflies emit light, as well as their larvae and eggs, the egg being luminous even while still in the ovary.
All poets and heroes, like Memnon, are the children of Aurora, and emit their music at sunrise.
Their colour is usually some tone of yellow with dashes of red, brown and green, and they frequently emit a pungent odour.
They are all, as found in commerce, of a pale yellow-green colour; they emit a peculiar aromatic odour, and have a slightly astringent bitter taste.
As soon as a spark-gap was introduced, or the condenser began to emit the humming sound peculiar to it, the beautiful blue glow so characteristic of argon immediately appeared.
In the not too distant future, tiny robots will detect pests on produce and emit a signal to shoo them away.
This is effected by raising up a small mound of rich compost around it, a contrivance which induces the graft to emit roots into the surface soil.
The flames of chlorine in hydrogen) do not apparently emit the usual sodium radiation when a sodium salt is placed in them.
The only noise the Tasmanian wombat makes is a low hissing, but the hairy-nosed wombat is said to emit a short quick grunt when annoyed.