Except measure the refraction index of the liquid.it also can look into electrophoresis of light lines refraction, echo and total reflec tion from any direction by different medium.

Flume:Made of transarence organic glass.Dia:160mm.

Dial:Made of white organic glass.Dia:160mm Lamp-house:Semiconductor laser linearis lamp-house.wave lengh 650mm

Outline border of the lamp-house:A whole shape made of platic have spire switch,fixup on circumrotate iron sheet by magnet.can 3600 round and orientation along the lamp-house.

Base:Made of organic glass,have four volution by hand.