Info

A very dramatic demonstration of the role of time and randomization in entropy. Also good for discussion of coutte flow/reynolds number.

Setup Instructions

1. Glycerine between two concentric cylinders is injected with a pattern of dye.

2. When the inner cylinder is rotated, the pattern disappears, but when the turning is reversed the pattern re-appears!

Parts List

Unmixing Apparatus in D. Thermo, 1A

Pipette and Suction Bulb in B. Fluids, 1B

Glycerin in purchase from bio stock room

Food Coloring in B. Fluids, 1C

Relevant Simulation

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Other Information

Laminar Flow

Real-Life Examples

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More Advanced Reading

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