Fluid is a substance that continually deforms(flows) under an applied shear stress. All gases are fluids, but not all liquids are fluids. Fluids are a subset of the phases of matter and include liquids, gases, plasmas and, to some extent,plastic solids.
which area of technology best classifies an iPhone
A taxonomist is a person who classifies things into kingdoms.
Lipids
Taxonomy.
ibook
brachiopods
Astronomers classify stars.
kingdom
It is a homogeneous mixture.
perpendicular
Liquid crystal displays use crystals that are not solid. The optical transparency of the crystal is adjusted with an electrical signal. The crystal will change its orientation as the signal is varied. It is this fluid motion that classifies the crystal as a liquid.
Zoologist