Brownian Motion is the random movement of
microscopic particles suspended in liquids or gases resulting from the impact
of molecules of the surrounding medium.
The Whitley Bay Smoke Cell allows observation of
'Brownian Motion' in smoke particles. Consists of a box with a plastic lid with
flanges that allow easy attachment to microscopes which have at least 20mm
clearance between the stage and the end of the 10X objective. The box contains
a smoke cell, cylindrical condensing lens and a 12 volt LED bulb. Apparatus
pre-set to focus the light at the correct height. The set is supplied with
detailed instructions and a squeeze bottle type smoke generator.
Dimensions: Base: 100mm x 60mm, Overall
Height: 20mm, Smoke Cell Box: 60mm x 60mm
A 12V DC Power Supply and connecting leads are also
required.
Learning Outcomes
GCSE Chemistry - Brownian Motion
A2 Physics - Further Mechanics and Thermal
Physics: Molecular Kinetic Theory Model -
Brownian motion as evidence for existence of atoms.
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