Liquid crystal
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Liquid crystal is a state of matter whose properties are between those of conventional liquids and those of solid crystals. There are many types of LC phases, which can be classified by the molecular
Schlieren texture of liquid crystal nematic phase
Otto Lehmann
Alignment in a nematic phase
Phase transition between a nematic (left) and smectic A (right) phases observed between crossed polarizers. The black color corresponds to isotropic medium.
State of matter
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In physics, a state of matter or phase of matter is one of the distinct forms in which matter can exist. Four states of matter are observable in everyday life: solid, liquid, gas, and plasma.
Bromine in both liquid and gas state, encased inside acrylic in solid state
Helium's orange glow in its plasma state
Artificial plasma produced in air by a Jacob's Ladder. The extremely strong potential difference between the two rods ionize particles in the air, creating a plasma.
SBS block copolymer seen with transmission electron microscopy (TEM)