This apparatus is used to demonstrate 'Brownian' or random motion of smoke particles. A specially designed plastic box, with a sliding lid, contains a glass smoke cell, a cylindrical 'Whitley Bay' pattern condensing lens and a low voltage festoon bulb. The components are pre-adjusted so as to focus the light at the correct height in relation to the smoke cell, ensuring that observation is enhanced.
- Flanged box for microscope stage mounting
- Hole in lid for microscope viewing access
- Includes a squeeze bottle for use as a smoke generator
- Box has 4mm sockets for electrical connections