What is the cloud chamber used to observe?
Stars
Atoms
Particles
Cells
Answer
Particles are observed using a cloud chamber. It is a device that allows the visualization of the tracks of charged particles as they pass through a gas. The particles ionize the gas, creating a trail of ions that can then be seen as a cloud of droplets when the gas is cooled and supersaturated. This allows scientists to study the properties of particles, such as their energy and momentum.
Chasing Clouds with Charles: The Charles Thomson Rees Wilson Quiz
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