Radiometer wheel

Experiment no.: 8.5.401
Radio­meter­rad
A radiometer wheel is a closed glass bulb almost completely evacuated of air with a moving fan wheel with several blades blackened on one side. If this is heated or cooled from the outside, it starts to turn in one direction or the other.

📄 Detailed experiment description

Images for this experiment

Experiment
Radiometer wheel
With infrared-transparent film
With infrared-opaque glass plate

Documents for this experiment

Movement of the molecules
Velocity distribution of N2
Velocity distribution of gases
Mean free path length

Further links