Radiometers.
P.I.R.A. #: 4D20.20
Illustrates: Differential absorption of radiation.
Description: Vane spins because the black side absorbs more radiation than the white does.
Size: 9" h (tallest)
Notes: An IR lamp with filters can be used to show the difference between visible & IR.
Hazard: Glass breakage.
Condition: Good.
Instructor Comments
