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Cloud chamber
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A cloud chamber, also known as a Wilson chamber, is a particle detector used for visualizing the passage of ionizing radiation.
The original cloud chamber of C. T. R. Wilson at the Cavendish Lab, Cambridge, England.
The original cloud chamber of C. T. R. Wilson at the Cavendish Lab, Cambridge, England.
Fig. 4: How condensation trails are formed in a diffusion cloud chamber.
Fig. 4: How condensation trails are formed in a diffusion cloud chamber.
Fig. 5: In a diffusion cloud chamber, a 5.3 MeV alpha-particle track from a Pb-210 pin source near Point (1) undergoes Rutherford scattering near Poin
Fig. 5: In a diffusion cloud chamber, a 5.3 MeV alpha-particle track from a Pb-210 pin source near Point (1) undergoes Rutherford scattering near Point (2), deflecting by angle theta of about 30 degrees. It scatters once again near Point (3), and finally comes to rest in the gas. The target nucleus in the chamber gas could have been a nitrogen, oxygen, carbon, or hydrogen nucleus. It received enough kinetic energy in the elastic collision to cause a short visible recoiling track near Point (2). (The scale is in centimeters.)
Example of watercooled thermoelectric cloud chamber
Example of watercooled thermoelectric cloud chamber
Ben Nevis
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Ben Nevis is the highest mountain in Scotland, the United Kingdom, and the British Isles. Ben Nevis stands at the western end of the Grampian Mountains in the Highland region of Lochaber, close to the
Cloud chamber
…a Scottish physicist, is credited with inventing the cloud chamber. Inspired by sightings of the Brocken spectre while working on the summit of Ben Nevis in 1894, he began to develop expansion chambers for studying cloud formation and optical phenomena in moist air. Very rapidly he discovered that ions…
Ben Nevis from Banavie. The summit is beyond and to the left of the apparent highest point.
Ben Nevis from Banavie. The summit is beyond and to the left of the apparent highest point.
The steep south face of Ben Nevis from Sgurr a' Mhàim
The steep south face of Ben Nevis from Sgurr a' Mhàim
A temperature inversion around Càrn Dearg Buttress and Castle Corrie
A temperature inversion around Càrn Dearg Buttress and Castle Corrie
An undated photograph of the Ben Nevis observatory (1883–1904) and 'hotel' (hostel). The hotel began as a spare-room-for-hire within the observatory a
An undated photograph of the Ben Nevis observatory (1883–1904) and 'hotel' (hostel). The hotel began as a spare-room-for-hire within the observatory and remained open until 1916.