Descriptions

Ingenious apparatus for observing Brownian motion in smoke particles. Great for physics classrooms studying kinetic theory

All optical components are pre-set at the optimal distance to focus light into the smoke cell Integral flanges on the plastic housing are provided as securing points for microscope stage clips.

The Smoke Cell contains a smoke cell, cylindrical condensing lens and a 3V 50mW Red laser, the apparatus has been preset to focus the light at correct height. 

Operation with 2 AA size battery.