WILSON'S CLOUD CHAMBER, DE LUXE MODEL {ATOMIC PHYSICS} + EXCITING BIT! BY PHILIP HARRIS, IN ORIGINAL BOX.
Fantastic top quality cloud chamber working on the sudden expansion of alcohol vapour principle. Particles leave tracks of water droplets which can be photographed. The tracks are characteristic of the type of particle which makes them. I don't know what the source is but would suggest an alpha emitter as the GM tube detects activity with the glass removed but none with the glass in place. I have compared it with a sample of Pitchblende and it is of a similar magnitude.
The 12 volt lamp can be raised or lowered to illuminate the tracks. This instrument is mounted on a very heavy cast iron base.
Overall height: 9.5 inches. Diameter of window: 2.5 inches. The item "^WILSON'S CLOUD CHAMBER, DE LUXE MODEL ATOMIC PHYSICS + EXCITING BIT! HARRIS" is in sale since Sunday, July 18, 2021. This item is in the category "Antiques\Science/Medicine\Scientific Instruments". The seller is "chemistry63hg" and is located in Newcastle, Staffordshire. This item can be shipped worldwide.